Ellen has a pencil 2x + 1/5cm long. Tom has a pencil 5x + 2/5cm long. How much longer is Tom's pencil than Ellen's?

Answers

Answer 1

The difference of length of Tom's pencil from Ellen's pencil is given by the equation A = 3x + 1/5 cm

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the difference of length be represented as A

Now , the equation will be

The length of Ellen's pencil is p = 2x + 1/5 cm

The length of Tom's pencil is q = 5x + 2/5 cm

Now , the difference of length A = q - p

Substituting the values in the equation , we get

The difference of length A = 5x + 2/5 cm - 2x + 1/5 cm

On simplifying the equation , we get

The difference of length A = ( 5x - 2x ) + ( 2/5 - 1/5 ) cm

The difference of length A = 3x + 1/5 cm

Therefore , Tom's pencil is longer than Ellen's pencil by 3x + 1/5 cm

Hence , the equation is A = 3x + 1/5 cm

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Related Questions

A corporate iued a bond with a face value of Php 2,000, a 6% coupon, and a 10-year maturity date. How much will the corporation pay to the bondholder?

Answers

The corporation will pay the bondholder a total of Php 1,200 + Php 2,000 = Php 3,200 over the life of the bond.

A bond's coupon is the annual interest payment that the bond issuer promises to pay to the bondholder. In this case, the bond has a face value of Php 2,000 and a 6% coupon, so the annual interest payment is 6% * Php 2,000 = Php 120.

The bond has a maturity date of 10 years, so the total interest payments to the bondholder over the life of the bond will be Php 120 * 10 = Php 1,200.

In addition to the interest payments, the bond issuer also promises to return the bondholder the face value of the bond at the maturity date. In this case, the face value of the bond is Php 2,000.

So, the corporation will pay the bondholder a total of Php 1,200 + Php 2,000 = Php 3,200 over the life of the bond.

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Your cousin goes to a private school where they have to buy their own textbooks. When he registers for classes he pays $230 to cover a book for each of his 7 classes plus a $20 fee for his art class. Write a two-step equation for this scenario then find the cost of each of his textbooks.

Answers

The two step equation for the scenario that your cousin is in where they pay for their textbooks is:

7x + 20 = 230

x = (230 - 20) / 7

The cost of the textbooks would be $30.

How to write the two - step equation ?

The total amount paid by your cousin in order to be able to cover a book for their 7 classes and the fee for art class is $ 230.

Assuming that the cost of each book from his 7 classes is denoted as x, then the expression would be:

= 7 x number of classes

= 7x

This amount is then added to the cost of the art class which is $ 20 so it becomes:

= 7x + 20

The two step equation is therefore:

7x + 20 = 230

x = (230 - 20) / 7

The cost of the textbooks is:

x = (230 - 20) / 7

x = $ 30

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Help me please yall id appreciate it

Answers

Is used to estimate the concentration of viable microorganisms in a sample by means of replicating liquid broth growth in ten-fold dilutions.

Find the measure of <IMN?

According to the Side Angle Side (SAS) postulate, two sides and the included angle of one triangle must be congruent to two sides and the included angle of another triangle in order for these two triangles to be considered congruent.

A is measured at a 40° angle. Measurement in mathematics refers to the quantification of a variety of quantities, including length, weight, capacity, and volume. Any amount is measured and expressed in two parts: a numerical value and the particular unit.

The most often measured quantities are the following: Length. Measurement units can be expressed in writing as symbols, words, or abbreviations. Use the following words for fundamental measuring units: 25 pounds, 12 inches. Use the following symbols to denote derived units of measurement: 38 mph, 27 ft/s2.

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Can someone help me solve this math problem in a quadratic model

Answers

The existence of positive integers is a given,Therefore, 8, 9, and 10 are three consecutive whole numbers.

What is quadratic model?

A mathematical model that may be expressed as a series of quadratic equations or as a quadratic equation, such as Y = aX2 + bX + c. When a quadratic equation is graphed, the connection between the variables is represented by a parabola. contrasting the linear model

The numbers should be x, x + 1, and x + 2.

Then, in response to the query, x 2

x ^2  + (x + 1)(x + 2) = 9.

2x^2 +3x - 9 =(2x+19)(x8)=0. + (x + 1)(x + 2) = 9.

It results in x=2 19,8.

Since the existence of positive integers is a given.

Therefore, 8, 9, and 10 are three consecutive whole numbers.

Use the following to solve any quadratic equations problem:

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Thanks if you help and hope you have a great day

Answers

Answer:

its increases by 10 degrees

Step-by-step explanation:

Write a linear function ƒ with ƒ(0) = 2 and ƒ(5) = −3

Answers

Answer:

f(x) = - x + 2

Step-by-step explanation:

the equation of a linear function in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

f(0) = 2 means y = 0 when x = 2 and f(5) = - 3 means y = - 3 when x = 5

thus there are 2 points (2, 0 ) and (5, - 3 )

calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 2 ) and (x₂, y₂ ) = (5, - 3 )

m = [tex]\frac{-3-2}{5-0}[/tex] = [tex]\frac{-5}{5}[/tex] = - 1

the line crosses the y- axis at (0, 2 ) ⇒ c = 2

then

f(x) = - x + 2

In a 19% sale the price of a shirt reduced by $77.33.
Find the original price of the shirt.
Answer in $.

Answers

The original price of the shirt is $407

What is percentage discount?

Percentage discount is a discount that is given to a product or service that is given as an amount per hundred.

From the question, to find the original price of the shirt

We use the equation:

0.19/100 =77.33/x

0.19x = 7733

dividing both side of the equation by 0.19

x=40700\100

x = 407

Hence, the original price of the shirt before the discount is $407

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there are sticks of lengths . how many incongruent triangles can be formed by using three of the given sticks?

Answers

It depends on the lengths of the sticks. If the lengths form a triangle, then three incongruent triangles can be formed.

1. First, check to see if the lengths of the sticks form a triangle. This can be done by comparing the lengths of the sticks to the Triangle Inequality Theorem, which states that the sum of any two sides of a triangle must be greater than the measure of the third side.

2. If the lengths of the sticks form a triangle, then three incongruent triangles can be formed by using the given sticks. To do this, take any three sides of the triangle and create three different triangles with those sides.

It depends on the lengths of the sticks. If the lengths form a triangle, then three incongruent triangles can be formed.

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The price of a jumper is increased by 99% $210.94
Find the original price.
The answer is in $.

Answers

Answer:

$208.8

Step-by-step explanation:

99% of $210.94

u just need to multiply

A rectangular field that measures 24 feet by 20 feet must be increased by a scale factor of 1.6. The new dimensions of the field will be____feet by 32 feet.

A. 36
B. 15
C. 38.4
D. 25.6

Answers

The answer is C, 38.4
20x1.6=32
24x1.6=38.4

Answer:

Step-by-step explanation:

here is a step-by-step explanation of how to find the new dimensions of the field:

Start with the original dimensions of the field: 24 feet by 20 feet

Apply the scale factor of 1.6 to the length (24 feet): 24 feet * 1.6 = 38.4 feet

Apply the scale factor of 1.6 to the width (20 feet): 20 feet * 1.6 = 32 feet

The new dimensions of the field are: 38.4 feet by 32 feet.

How many different angles are formed at the Vertex A (only count inside the figure)?

Answers

Answer: 10

Step-by-step explanation: I counted

The number of different angles formed at the vertex A is 10.

What are Angles?

Angles are the figure formed by the intersection of two lines or rays by sharing a common point. This point is called the vertex of the angle.

Angles are usually measured in degrees or radians.

Given is a figure.

We have to calculate the number of angles formed at A.

The biggest angle is ∠BAG.

There are 3 other other angles starting from B to C, E and F through A.

There are 3 angles starting from C to E, F and G through A.

2 angles are starting from E to F and G through A.

There is 1 angle starting from F to G through A.

Total number of angles formed at A = 1 + 3 + 3 + 2 + 1 = 10

Hence the total number of angles formed at A is 10.

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Mrs. Morales wrote a test with 15 questions covering spelling and vocabulary. Spelling questions (x) are worth 5 points and vocabulary questions (y) are worth 10 points. The maximum number of points possible on the test is 100. a. Write an equation in slope -intercept form to represent the number of questions on the test. _ b. Write an equation in slope-intercept form to represent the total number of points on the test. _. c. Graph the solutions of both equations . d. Use your graph to te ll how many of each question type are on the test.

Answers

A) y=-x+15
B)  
y=-1/2x+10
D)  The graphs intersect at x=10,y=5 And spelling questions are 10 and vocabulary questions are 5.        

               

Step-by-step explanation:

Total number of question is 15,
So,
x+ y=15
y=-x+15

B) Total number of points possible is 100
5x +10y=100
x+2y=20
2y=-x+20
y=-1/2x+10

D) The graphs intersect at                  
x=10,y=5

So spelling questions are 10 and vocabulary questions are 5.  

According to the slope-intercept form, the slope-intercept form of the line is given by the equation y = mx + b, where m is the line's slope and (0,b) is its y-intercept. Ax + By = C is the method for a linear equation in standard form, where A, B, and C are real numbers.

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what is the sum of the two largest 2-digit distinct counting numbers that are not multiples of 1, 2, or 5?

Answers

The sum of the two largest 2-digit distinct counting numbers is 45

The term sum in math is defined as the result of arithmetically adding numbers or quantities

Here we have given that we need to find the sum of the two largest 2-digit distinct counting numbers that are not multiples of 1, 2, or 5.

By using the arithmetic progression here we have all two digit odd positive numbers are 11, 13, 15, 17, ...., 99. which are in AP with the value of

=> a=11,

=> d=2,

=> l=99

Then let the number of terms be n, then it can be calculated as,

=> an​=99

=> a+(n−1)d=99

Apply the values on it, then we get,

=> 11+(n−1)×2=99

When we simplify this one then we get the value of n as 45

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A certain car costs $25,000 new, but loses 8% of its original value with every passing year. What is an expression for the cost (C) of the car after y years of use? A. C=-08y*25000B. C=-2000y+25000 C. y = -8c+23000 D. 2000C - 25000 E. C = 2000y - 25000

Answers

2500 - 2000y  is  value with every passing year. is an expression for the cost (C) of the car after y years of use.

What does "cost simple" mean?

The amount of money that a business had to spend on the production of its goods or services is known as the cost. It is calculated as the sum that the business spends to create a specific number of a product.

                                    In plain English, it is the cash a business spends on things like labor, services, raw materials, and more.

The cost of the car is  $25,000

and it loses its original value by  8%

.

Hence the cost of the car after y years = $(2500 - 2500 * 0.08 * y)

                                                    = $(2500 - 2000 * y

                                                = 2500 - 2000y

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consider an urn with 3 red balls, 2 blue balls, and 7 black balls. three balls are selected at random with replacement, i.e. each time a ball is selected it is returned to the urn. (a) what is the probability of selecting one red and two black balls? (b) what is the probability of selecting exactly two black balls? (c) what is the probability of selecting exactly two balls of the same color?

Answers

(a) 21/144 probability of selecting 1 red and 2 black. (b) 35/144 probability of selecting 2 black. (c) 61/144 probability of selecting 2 same color.

What is probability ?

Probability is a measure of the likelihood of an event occurring, expressed as a number between 0 and 1, with 0 indicating that the event will not occur and 1 indicating that the event will occur with certainty. The probability of an event can also be expressed as a percentage or a fraction. It is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

(a) The probability of selecting one red and two black balls is (3/12) * (7/12) * (7/12) = 21/144.

(b) The probability of selecting exactly two black balls is (7/12) * (7/12) * (5/12) = 35/144.

(c) The probability of selecting exactly two balls of the same color is (3/12) * (3/12) + (2/12) * (2/12) + (7/12) * (7/12) = 61/144.

(a) 21/144 probability of selecting 1 red and 2 black. (b) 35/144 probability of selecting 2 black. (c) 61/144 probability of selecting 2 same color.

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Simplify.

Remove all perfect squares from inside the square roots. Assume x and z are positive.

V72x323

Answers

the expression can be simplified to V72√37x323 + V a√z.

V72x323 + Vz = V(72x323 + z)

Since the square roots contain two different terms, we cannot simplify them any further. However, we can remove any perfect squares that are contained inside the square roots. To do this we can factor out the perfect squares from the terms inside the square roots.

For the first square root, 72x323 = 72 x 9 x 37. Since 72 and 9 are both perfect squares, we can factor out these terms to get 72√37x323.

For the second square root, z = a2, where a is a positive real number. We can factor out the perfect square a2 to get a√z.

Therefore, the expression can be simplified to V72√37x323 + V a√z.

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a ferris wheel with a radius of 10m is rotating at a rate of one revolution every 2 minutes. how fast is a rider rising when his seat is 16m above ground level?

Answers

With a speed of 0.419 m/s, the rider fast is a rider rising when his seat is 16m above ground level

The formula for tangential velocity is 2*pi*r/T --> 2*pi*10/120 --> pi/6.

It is 6 meters above the center of the wheel while the rider is 16 meters above the ground.

The horizontal portion of this distance must be 8 meters as its separation from the wheel's center is 10 meters (depending on the radius).

This indicates that the velocity and seat both make angles of 36.87 degrees off vertical and arctan(6/8) over the origin, respectively.

We will take into account the vertical component of the tangential velocity since the rate at which the seat is rising is what we're interested in.

Pi/6 * cos(arctan(6/8)) yields a value of 0.419 m/s.

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4) To cook 10 cups of rice, Martha used 18 cups of water. If Martha cooks 12 cups of rice, how much water does she need?​

Answers

Answer:

To cook 10 cups of rice, Martha used 18 cups of water. We know that this is a proportion of the amount of water needed to the amount of rice cooked:

10 cups of rice : 18 cups of water = x : y

We also know that x is the amount of water needed to cook 12 cups of rice.

To find out how much water Martha needs, we can keep the proportion and substitute the known value of x.

10 cups of rice : 18 cups of water = 12 cups of rice : y

We can cross multiply to get:

10 * y = 18 * 12

y = 18 * 12 / 10

y = 21.6 cups

Therefore, Martha needs 21.6 cups of water to cook 12 cups of rice.

a department store chain is expanding into a new market, and is considering 14 different sites on which to locate 7 stores. assuming that each site is equally likely to be chosen, in how many ways can the sites for the new stores be selected?

Answers

17297280 ways can the sites for the new stores be selected. This can be solved using the concept of probability.

What is probability?

The word "probability" derives from the Latin word "probitatem," which means "credibility, likelihood," from the noun probabilis in the 14th century (see probable). The phrase was first used in a mathematical meaning in 1718.

A probability is a number that expresses the possibility or likelihood that a specific event will take place. Probabilities can be stated as proportions with a range of 0 to 1, or as percentages with a range of 0% to 100%.

Given that,

14 different sites on which to locate 7 stores

For store 1, it can be placed on 14 sites.

Store 2 can be placed on 13 sites (since store 1 is already on site 1).

Store 3 can be placed on 12 sites and

so on until store 7 which has 8 sites.

Therefore the number of ways is:

C = 14 × 13 × 12 × 11 × 10 × 9 × 8

C = 17297280 ways

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18. 11,9, 22, 20, 33, 44, ?, ? (a) 55, 54 (b) 43,55 (c) 55,53 (d) 41, 55 (e) 42, 55​

Answers

This question is based on the concept of sequence. Therefore, the next two terms of sequence is 55, 44, 33, 22, 11, 00.

Find the sequence ?

This question is based on the concept of sequence. Therefore, the next two terms of sequence is 55, 44, 33, 22, 11, 00.

Given:

Sequence is 55, 44, 33, 22, ...

We need to find the next two terms in the sequence.

According to the question,

Now, calculating the common difference of arithmetic sequence.

d1 = 44  - 55 = -11

d2 = 33 - 44 = -11

Hence, the common difference d is -11.

Now, calculating the next two terms of given sequence.

We know that,

a5 = 55+ (4) * (-11)

a5=55-44

a5  = 11

a6 = 55+(5)*(-11)

a6 = 55- 55

a6 = 00

This question is based on the concept of sequence. Therefore, the next two terms of sequence is 55, 44, 33, 22, 11, 00.

Therefore, the next two terms of sequence is 55, 44, 33, 22, 11, 00.

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to estimate the true mean speed of vehicles traveling on a particular section of roadway, a speed-detection device is programmed to measure the speed of the first 100 vehicles that pass it. are the conditions for constructing a t confidence interval met? no, the random condition is not met. no, the 10% condition is not met. no, the normal/large sample condition is not met. yes, the conditions for inference are met.

Answers

It's difficult to say whether the conditions for constructing a t-confidence interval are met based on the information provided. To construct a t-confidence interval, three conditions must be met:

The sampling method must be random. It's not specified in the problem whether the method of selecting the vehicles was random or not, so it's impossible to say whether this condition is met.

The sample size must be large enough. A sample size of 100 vehicles is considered to be large enough for the normal/large sample condition to be met.

The population must be approximately normally distributed or the sample size must be large. Since the problem does not specify anything about the distribution of the population, it is not clear if this condition is met.

Given that the information provided does not give enough details to state whether the conditions for constructing a t-confidence interval are met or not.

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Question 2 (1 point)
Square UVWX is dilated by a scale factor of 8. Which algebraic representation represents
how to find the coordinates of square u'v'w'x'?
a (x,y) → (x,y)
b (x,y) → (x, y)
c (x,y)-(x,y)

d (x,y) → (8x, By)

Answers

The rule of transformation will be (x,y) → (8x, 8y). Then the correct option is D.

What is a transformation of a point?

A spatial transformation is each mapping of feature space to itself and it maintains some spatial correlation between figures.

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered. There is no effect of dilation on the angle.

Square UVWX is dilated by a scale factor of 8.

Then the rule of transformation is given as,

(x,y) → 8(x, y)

(x,y) → (8x, 8y)

The rule of transformation will be (x,y) → (8x, 8y). Then the correct option is D.

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what is the expected number of cards that need to be turned over in a regular 52 card deck in order to see the first ace

Answers

In a standard 52-card deck, 10.6 turns of the cards are anticipated before the first ace is seen.

What exactly is a ship's deck?

A deck is a structure that covers a sea bed or a compartment permanently. The primary or top deck on a boat or ship is the horizontal support that acts as the hull's "roof," reinforcing it and providing the main working area.

An n-card deck will often need turning over (n+1)/(k+1) cards before the initial set of k notes can be seen. Given that there have been four aces and n=52, k=4, the solution is 53/5, which is 10.6.

The predicted count is therefore increased by 1/(k+1) for each non-target card, such as a card that wasn't an ace there in original question. Since there are n-k – anti cards, (n-k)/(k+1) is the anticipated group of non cards to appear prior to the initial target card. Because the initial target card increases the count by one, we may predict that (n-k)/(k+1) + 1 Equals (n+1)/(k+1).

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randomly select a customer that takes the bus to our store. randomly select a customer that drove to our store. are these events mutually exclusive? exclusive events

Answers

The event of customer taking the bus and driving to the store are not dependent and hence are mutually exclusive events.

What is set theory?

Since it is used to calculate the probabilities of events, set theory is highly well-liked in the fields of statistics and mathematical theory. When the likelihood of the two occurrences occurring simultaneously is equal to the probability of the events occurring separately, the events are said to be independent.

Given that A is the customer that takes the bus and B is the customer that drove to the store. Since, the two events do not have a relation with each other, they are considered to be independent event and hence they are mutually exclusive.

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Consider the parent function f (x) below.
1. Graph f(2x) in the color green below.
2. Graph -3f(x) in the color blue below.
3. Graph 2f (2x) in the color red below.
Help asap :)

Answers

In this subsection, we examine the ways in which the graphs of functions alter or transform as a result of certain, specialized adjustments to their formulations.

What is Transformations?We shall present the transformations in the following order: shifts, reflections, and scalings. The transformations we will investigate can be broadly divided into these three types. Consider the full graph of a function f to be the graph shown below.In order for the point (a, b) to be on the graph, f(a) = b, according to the Fundamental Graphing Principle for Functions. To be more specific, we know that f(0) = 1, f(2) = 3, f(4) = 3, and f(5) = 5.To refresh our memories on what g is doing, let's pause for a moment. With an input of x into the function f, we can then get the f as the result (x).G adds 2 to the output of the function f(x). Graphing the points (x, g(x)) is required in order to graph g. The correct response is that we only require the values of f and do not require a formula for f(x) (x). On the graph of y = f, the y values correspond to the values of f(x) (x). We can create the following table, for instance, using the points shown on the f graph.In general, if the pair (a, b) is on the y = f(x) graph, then f(a) = b, and g(a) = f(a) + 2 = b + 2. The result is that (a, b+ 2) is on the graph of g. Alternatively said, we multiply the y-coordinate of each point on the graph of f by 2 to produce the graph of g. Geometrically, a point travels 2 units higher when its y-coordinate is multiplied by 2. Typically, "moving the graph up 2 units" refers to collectively adding 2 to each y-coordinate on a graph. The graph is only two units above its original place, but it still has the same basic structure as previously.

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I dont understand this question I need help on how to work it out.

Answers

Answer:

108 cm

Step-by-step explanation:

You need to figure out the area of both triangles and then add them to the area of the rectangle. The area of the rectangle can be found like:

12x5=60.

Then, you need to find the are of the triangles. We are told the height of the hexagon is 13cm, and that the height of the rectangle is 5cm. So, the area of the height triangles is 13-5cm and to get the height of the original triangles we will do:

13-5=8/2=4.

Next, we need to find the area of the triangles. That is calculated using the formula a=(1/2)bh. The base is 12 cm (same as the bottom rectangle side) and the height, as found in the previous problem is 4cm. So, what we will do is:

a=(1/2)4*12=24.

The area of one triangle is 24, so we will add that to get the triangles combined area, to 48. The total area of the shape comes by adding all the areas of the shaped found inside it.

60+48=108. So the area of the hexagon is 108 cm.

a 342-inch pipe is cut into two pieces one piece is five times the length of the other. Find the lengths of the two pieces​

Answers

Answer:

285 and 57

Step-by-step explanation:

First, find the length of the longer pipe, which is stated to be 5 times longer than the shorter piece. Substitute the longer piece as b. Same for the shorter piece, but as a.

[tex]a + b = 342\\5b\:+\:? = 342\\a = 5b[/tex]

Why a is 5b is because a is the correspondent value to b since they are both substituted, in short words this means that a will be the equivalent of |5 × b - 342|

Next, we substitute the problem in a ruled equation. Think of it this way: There are 2 values in the equation. One has a value of 5 and the other has a value of one. Add those together, and you get 6, right? This will be important for our final answer.

[tex]6b\div 6 = 342\div 6\\b = 57[/tex]

Lastly, substitute a.

[tex]a + b = 342\\a + \bold{57} = 342\\a = \left(342 - 57\right)\\\\a = 285\\b = 57[/tex]

Hope this helps!

Over the summer, for every 13 orka seeds Dana planted, 8 grew into plants. if he planted 130 orka seeds, how many grew into plants

Answers

Answer:

80 grow into plants

Step-by-step explanation:

Fraction word problems:

   Out of 13 seeds, 8 grew into plants.

[tex]\sf \text{Number of seeds grown out of 130 okra seeds} = \dfrac{8}{13}*130[/tex]

                                                                       = 8 * 10

                                                                       = 80

Out of 130 seeds, 80 grow into plants.

what conditions must be met to use z procedures in a significance test about a population proportion? the population is greater than 10 times the sample size. the sample size is greater than 20. the probability of success multiplied by the sample size is greater than or equal to 10, and the probability of failure multiplied by the sample size is greater than or equal to 10. i and iii only ii and iii only i only ii only iii only

Answers

The population is greater than 10 times the sample size is supposed to be met to use z procedures in a significance test about a population proportion.

The collection of data is gathered and chosen from a statistical population with the use of some prescribed techniques in both statistics and quantitative methodology. Data sets may be divided into two categories: sample and population.

All the components of the data set are included in the population, which also contains quantifiable qualities like mean and standard deviation.

A sample is made up of one or more observations that are taken from the population, and a statistic is what makes a sample quantifiable. The act of sampling is the selection of a sample from a population.

To know more about population and sample visit: brainly.com/question/15019364

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Help, needed ASAP, Thank you!!

Answers

Answer:

x = 4

Step-by-step explanation:

For this question we can use the theorem which states that "if the chords of a circle is equal, it is equidistant from the center."

Therefore, FC = CE

or 3x + 8 = 8x - 12

5x = 20

x = 4

Pls mark as brainliest. Cheers

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