There are 7 gloves in the lost & found box. There are 2 blue gloves, 3 green gloves,
1 black glove, and 1 brown glove. What fraction of the gloves are black?

Answers

Answer 1

Answer: 1/7

Step-by-step explanation:

There are total of 7 gloves

There is 1 black glove

So take 1 divided by 7

The Fraction is 1/7


Related Questions

Sarah uses three and one half pounds of clay to make 14 small vases. Use a proportion to find how many pounds of clay she will use to make 31 small vases.

12 and one half pounds
8 and three fourths pounds
7 and three fourths pounds
6 and one half pounds

Answers

Sarah needs 7 and three-fourths of pounds of clay to make 31 small vases. By using the proportion of pounds of clay to the number of small vases, the required value is calculated.

What are proportions?

Proportions are equations in which two ratios are made equal to each other. By using these we can relate a part to a whole. The formula for the proportions is written as

a : b = c : d or a/b = c/d or ad = bc

Here the variables a and d are said to be the extreme terms and the variables b and c are the mean terms.

Mostly used proportions are inverse proportion, direct proportion, compound proportion, etc.

Calculation:

Given that,

Sarah uses 3 and 1/2 pounds of clay to make 14 small vases.

And x pounds of clay to make 31 small vases.

So, applying the proportions formula for finding the x value as

[tex]3\frac{1}{2}:x=14:31[/tex]

Then, we can write them as

bc = ad ⇒ 14x = 7/2 × 31

⇒ 14x = 217/2

⇒ x = 217/28

⇒ x = 7.75 = [tex]7\frac{3}{4}[/tex]

Therefore, Sarah needs 7 and three-fourths pounds of clay to make 31 small vases. So, option C is correct.

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for each graph caculate the slope of each line

Answers

Answer: -5/4

Step-by-step explanation:

The slope is rise/run or y2 - y1/ x2 - x1

The two points are (-6,-3) (-2, -8)

The y decreases by 5 and the x increase by 4

So the slope is -5/4

A brick wall 4.3 m by 2.4 m is to be built. How
many bricks will be needed if there are 40 bricks
per m2? (round up to the nearest whole brick)
Help
Please

Answers

413 bricks are needed to build a wall whose area is equivalent to 10.32 m².

What is a function? What is equation modelling? What is a mathematical equation and expression?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the functionEquation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis of the given problem.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.

Given is that a brick wall of dimension 4.3 m by 2.4 m is to be built. There are 40 bricks per m².

The area of the wall will be -

[A] = 4.3 x 2.4 = 10.32 m²

[A] = 10.32 m²

Now, for the area of 1 m², 40 bricks are needed. So, for 10.32 m², we can say that -

10.32 x 40

412.8

413 bricks.

Therefore, for the area of 10.32 m², to only 413 bricks are needed to build it.

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p,3,5,7,q,13 is a sequence of prime numbers.Find the value of p+q.
A.10
B.12
C.13
D.14

Answers

Answer: P is 1 and q is 11, making your answer 12.

Step-by-step explanation:

If the chart is displaying prime numbers in order from 1 to 13, list all of the prime numbers. We would start with '1' because '1' is a prime and the first one on the list, thus followed by 3, then 5, then 7, then 11 because the only prime number between 7 and 13 is 11.

Then, add your P and q together, 1 and 11 in this example, to get your final answer of 12.

How do you solve 2=11+3(m+3)?

Answers

Answer: m= -6

Step-by-step explanation: 2 = 11 + 3m + 9

3m = 2 - 11 - 9

3m = -18

Divide both sides by 3.

m= -6

Answer:

m = -6

Step-by-step explanation:

Step by step explanation:

2-11 = 3m+9 ==》3m = -18 ==》m = -18/3 ==》m= -6

Please help soon on functions problem, thanks!

Answers

Answer:

g(0) = 3

Step-by-step explanation:

x=0 fits perfectly in the range -1<x<2:  -1<0<2 √

Hence:

g(x)=3 when x=0

Since x=0:

g(x) = g(0) = 3

Which of the following is a solution of the equation 3x-7 = 7-4x​

Answers

Answer:

x = 2

Step-by-step explanation:

What is the solution of an equation?

the value of the variable that makes LHS (the left-hand side) equal RHS (the right-hand side)

Thus, we need to solve for x, the variable.

Given:

3x - 7 = 7 - 4x

To solve for x, we need to have all the variables on the LHS (or RHS), and all the constants on the RHS (or LHS).

To do so, first add 4x to the LHS and RHS. This "moves" -4x to the LHS:

3x +4x - 7 = 7 +4x -4x

Add like terms (terms with the same variable) to simplify:

7x - 7 = 7

Next, add 7 to the LHS and RHS. This "moves" -7 to the RHS:

7x +7 -7 = 7 +7

7x = 14

Finally, divide the LHS and RHS by 7 to isolate the variable:

[tex]\frac{7x}{7} = \frac{14}{7}[/tex]

∴ x = 2

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A pyramid has a square base with Side s. The height of the pyramid is 2/3 that if it’s side. What is the expression of the volume of the pyramid

Answers

The expression for the volume of the pyramid is V = 2/9s^3

Volume of a pyramid

To find the volume of a pyramid, we multiply the area of its base with the height of the pyramid, and divide by 3. We express this product with the formula V=(1/3)×B×H, where B is the area of the base of the pyramid, and H is its height.

The volume of a pyramid is:

V=1/3(B)(H)

Where

B:Base = s^2

H:Height = 2/3s

Then:

V=1/3(B)(H) = 1/3(s^2)(2/3s) = 2/9s^3

Hence, the expression for the volume of the pyramid is V = 2/9s^3

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Bruno Fruscalzo decided to start a small production facility in Sydney to sell gelato to the local restaurants. His local milk supplier charges $0.5 per kg of milk plus a $15 delivery fee (that is independent of the amount ordered). Bruno’s holding cost is $0.03 per kg per month. He needs 9250 kgs of milk per month.
a. Suppose Bruno orders 9750 kgs each time. What is his average inventory (kgs)? 4,875 kgs
(Round your answer to 1 decimal place.)
b. Suppose Bruno orders 6250 kgs each time. How many orders does he place with his supplier each year? 1.0 orders
c. How many kgs should Bruno order from his supplier with each order to minimize the sum of ordering and holding costs? 15 kgs
(Do not round intermediate calculations. Round your answer to 2 decimal places.)
d. If Bruno’s storage vessel can hold only 2000 kgs of milk, what would be Bruno’s annual ordering and holding costs?
(Do not round intermediate calculations. Round your answer to 2 decimal places.)
e. If Bruno’s storage vessel can hold only 5750 kgs of milk, what would be Bruno’s annual ordering and holding costs?
(Do not round intermediate calculations. Round your answer to 2 decimal places.)
f. Bruno’s supplier’s truck can carry 20,000 kgs of milk. The supplier does not want to deliver to more than 3 customers with each truck. Thus, the supplier requires a minimum order quantity of 6,500 kgs. If Bruno orders the minimum amount, what would be the sum of his annual ordering and holding costs? Assume he has a storage vessel large enough to hold 6,500 kgs.
(Round your answer to 3 decimal places.)
g. Bruno’s supplier offers a 4% discount when a customer orders a full truck, which is 20,000 kgs. Assume Bruno can store that quantity and the product will not spoil. If Bruno orders a full truck, what would be the inventory holding and ordering cost incurred per kg of milk? Assume the discount also applies to the holding cost.
1 decimal places required.

Answers

The cost of the milk from the supplier can be calculated as follows:

Cost of milk = (price per kg of milk) * (number of kg of milk) + delivery fee

= $0.5/kg * 9250 kg + $15

= $<<0.5*9250+15=4675>>4675

The holding cost of the milk can be calculated as follows:

Holding cost = (holding cost per kg per month) * (number of kg of milk)

= $0.03/kg/month * 9250 kg

= $<<0.03*9250=277.5>>277.5

Therefore, the total cost of the milk for Bruno's production facility is $4675 for the milk from the supplier and $277.5 for the holding cost, for a total of $4952.5.

The mean of the data set 5, 10, 2, 1 and x is 5. What is the value of x ?
1 point
A) 5
B) 7
C) 13
D) 18

Answers

Answer: b) 7

Step-by-step explanation:

mean = average of the data

[tex]mean = \frac{sum of all terms}{total number of terms}[/tex]

[tex]5 = \frac{5+10+2+1+x}{5}\\ 25 = 18+x\\\\25 - 18 = x\\\\7= x[/tex]

if angle A=125 in the parallelogram below, what is the measure of angle B?​

Answers

Answer:

angle B = 55°

.............

what is the probability that between 10:00 and 10:30 the switchboard will receive more than 9 calls but fewer than 18 calls?

Answers

Between 10:00 and 10:30, there is a 0.333 percent chance that the switchboard will field more than 9 calls but fewer than 18 calls.

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

The probability is computed by dividing the total number of possible outcomes by the number of possible ways the event could occur. Probability and odds are two distinct ideas. Odds are calculated by dividing the likelihood of an event by the likelihood that it won't.

Time = 30 min (as 10:00 to 10:30)

Total calls = 9+18 =27

Probability receive more than 9 calls but fewer than 18 calls

p(9 < x > 18) = { 10, 11, 12, 13, 14, 15, 16, 17, 18}  = 9 (all possibilities)

Total Probability = (likely event / total outcomes)

p(9 < x > 18) = (9/27)

p(9 < x > 18) = 1/3

p(9 < x > 18) = 0.333

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Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.i) 4x² - 3x + 7 ii) y² + √2 iii) 3√t + t√2 iv) y + (2/y) v) x10 + y3 + t50

Answers

(A) 4x² - 3x + 7 and (B) y² + √2 are polynomials with one variable and the rest are not.

What are polynomials?

A polynomial is a mathematical equation made up of coefficients and indeterminates that exclusively uses the operations of addition, subtraction, multiplication, or powers of positive numbers of the variables.

x² - 4x + 7 is an illustration of a quadratic with a solitary indeterminate x.

(A) 4x² - 3x + 7:

'x' is the only variable in the provided polynomial.

As a result, the polynomial 4x² - 3x + 7 has one variable.

(B) y² + √2:

'Y' is the only variable in the provided polynomial.

y² + √2 is a polynomial in one variable as a result.

(C) 3√t + t√2:

Since the power of the variable in the first term is 1/2, which is not a whole integer, 3√t + t√2 is not a polynomial.

(D) y + (2/y):

Because the power of the variable in the second term is -1, which is not a whole number, y + 2y⁻¹ is not a polynomial.

(E) x¹⁰ + y³ + t⁵⁰

Due to the fact that x, y, and t are all three variables, x¹⁰ + y³ + t⁵⁰ is not a polynomial in one variable.

Therefore, (A) 4x² - 3x + 7 and (B) y² + √2 are polynomials with one variable and the rest are not.

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How do you solve 14/x = 2/5 ?

Answers

Answer:just solve it

Step-by-step explanation:

it is super easy

Rhett drove 50 miles East then 40 miles North. How many miles would Rhett have driven directly from the starting point to the end point? (Round to the nearest mile)

Answers

Answer:

[tex]\sqrt{4100}[/tex]

Step-by-step explanation:

Step 1 Substitute Using Pythagorean Theorem:

x = [tex]\sqrt{50^2+40^2}[/tex]

Step 2 Solve:

[tex]50^2=2500[/tex]

[tex]40^2=1600[/tex]

Therefore,

[tex]\sqrt{50^2+40^2}=\sqrt{4100}[/tex]

4100 that’s the answer

before agreeing to purchase a large order of polyethylene sheaths for a particular type of high-pressure oil-filled submarine power cable, a company wants to see conclusive evidence that the true standard deviation of sheath thickness is less than .05mm. what hypotheses should be tested? what are the type i and type ii errors?

Answers

Hypothesis is tested as H₀: σ   = 0.05 mm versus H₁: σ  <  0.05 mm.

The type I error occurs if we accept a shipment that should have been rejected .

A type II error occurs if we reject a shipment that should have been  accepted.

Given that,

A corporation wants to see concrete proof that the genuine standard variation of sheath thickness is less than 0.05mm before committing to a significant order of polyethylene sheaths for a certain kind of high-pressure oil-filled submarine power line.

We have to find what theories need to be tested and what exactly are types I and ii errors.

We know that

H₀: σ   = 0.05 mm

versus

H₁: σ  <  0.05 mm.

In this context,

The type I error occurs if we accept a shipment that should have been rejected .

A type II error occurs if we  reject a shipment that should have been  accepted.

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Consider the differential equation: dy/dx=ey(3x2-6x)

a) Sketch a slope field for the given equation and include six points on the graph.

b) FInd y=f(x), the particular solution to the differential equation that passes through (1,0).

c) Write an equation for the tangent line to the graph of f at the point (1,0). Use the tangent line to approximate f(1,2).

Answers

F(x)= -ln(-x3+3x-1) is a particular solution to the differential equation that passes through (1, 0).  An equation for the tangent line to the graph of f at the point (1,0) = -3.

b.[tex]\frac{dy}{e^y} = (3x^2-6x)dx\\[/tex]

∫[tex]e^{-y} dy =[/tex] ∫[tex](3x^2-6x)dx[/tex]

[tex]-1e^{-y} = x^3-3x^2+C\\e^{-y} = -x^3+3x^2+C_{2}\\ -y= ln(-x^3+3x^2+C_{2}) \\y=-ln(-x^3+3x^2+C_{2}[/tex]

Given (1,0)

[tex]0= -ln (-1+3+C)\\0=ln_{c} (2+C)\\e^{0} = 2+C\\-1=C\\so f(x)= -ln(-x^3+3x^2-1)\\[/tex]

f(1.2)=-.465 as the actual value.

c. tangent line slope at (1,0).[tex]= e^0 (3(1)^2-6(1))\\[/tex]

[tex]=-3[/tex]

Line equation: y= 3(x-1) or y= 3x + 3

with f(1,2)=-3(1.2)+3 =-.6

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Is (6, 4) a solution to this system of
y = 2x - 8
y = -1/3x + 6
3
yes
no

(This is on IXL)

Answers

Answer:

Yes

Step-by-step explanation:

y = 2x - 8  Plug is 6 for x and 4 for y

4 = 2(6) - 8

4 = 12 - 8

4 = 4

(6,4) is a solution for this equation

y = -1/3 x + 6

4 = -1/3(6) + 6

4 = -2 + 6

4 = 4

(6,4) is a solution for this equation too.

the formula would be used to find a) the first quartile of a data set using the inclusive method. b) the third quartile of a data set using the exclusive method. c) the first quartile of a data set using the exclusive method. d) the median of a data set using the inclusive method.

Answers

The given formula would be used to find the first quartile of a data set using the exclusive method.

What is quartile?

A quartile is a type of quantile used in statistics that divides the total number of data points into four roughly equal parts, or quarters. To compute quartiles, the data must be arranged from smallest to largest; therefore, quartiles are a type of order statistic.

The given formula is [tex]L_P = (n + 1)\frac{25}{100} \\[/tex]

This formula can also be written as,

[tex]R = (n + 1)\frac{25}{100}[/tex]

where 25 is the percentile of the data set.

So, the option (c) is correct.

The first quartile of a data set using the exclusive method.

Hence, the given formula would be used to find the first quartile of a data set using the exclusive method.

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suppose s1, 1d is a critical point of a function f with contin- uous second derivatives. in each case, what can you say about f?

Answers

In each case, for a) f has local maximum at (1,1) and for b) f has saddle point at (1,1).

a) f_{xx}f_{yy}-(f_{xy})2

=(-4)(-2)-(1)2

=8-1

=7>0

f_{xx}=-4<0

Therefore, f has local maximum at  (1,1)

b) f_{xx}f_{yy}-(f_{xy})2

=(-4)(-2)-(3)2

=8-9

=-1<0

Therefore, f has saddle point at  (1,1)

A factor at which a feature of  variables has partial derivatives identical to 0 however at which the feature has neither a most nor a minimal value.

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Complete question:

Suppose (1, 1) is a critical point of a function f with continuous second derivatives. In each case, what can you say about f?a) f_{xx}f_{yy}-(f_{xy})2 and b) f_{xx}f_{yy}-(f_{xy})2

Consider the graph of the line y = 1//2x – 4 and the point (−4, 2). The slope of a line parallel to the given line is . A point on the line parallel to the given line, passing through (−4, 2), is . The slope of a line perpendicular to the given line is . A point on the line perpendicular to the given line, passing through (−4, 2), is ✔ (–2, –2) .

Answers

For the given line y = 1/2x - 4,

The slope of the line parallel to the given line is m = 0.The point on the line parallel to the given line, passing through (-4, 2) is (0, 4) and its equation is x - 2y + 8 = 0.The slope of the line perpendicular to the given line is m = -2.The point on the line perpendicular to the given line, passes through (-4, 2) is (-2, -2) and its equation is y = -2x - 6.

How to calculate the slopes and equations of parallel and perpendicular lines of a line?

Consider a line with the equation ax+by+c=0

The slope of the line is m = -b/a.The slope of the line parallel to the given line is m = 0.The slope of the line perpendicular to the given line is m = a/b or the product of their slopes equal to -1.The equation of the line parallel to the given line and passing through the point (x1, y1) is a(x - x1) + b(y - y1) = 0.The equation of the line perpendicular to the given line and passing through the point (x1, y1) is b(x - x1) - a(y - y1) = 0.

Calculation:

It is given that, the equation of a line is given as y = 1/2x - 4.

The slope of the given line is m = 1/2; (since it is in the form of y=mx+c)

Then, the slope of the line parallel to the given line is m = 0.

And the equation of the parallel line passing through the point (-4, 2) is

a(x - x1) + b(y - y1) = 0; where a = 1; b = -2 (y = 1/2x-4 ⇒ 2y = x - 8)

⇒ 1(x + 4) - 2(y - 2) = 0

⇒ x + 4 -2y + 4 = 0

⇒ x - 2y +8 = 0

So, the point on the parallel line is (0, 4).

The slope of the line perpendicular to the given line is m = -1/1/2 = -2.

And the equation of the perpendicular line passing through the point (-4, 2) is

b(x - x1) - a(y - y1) = 0; where a = 1; b = -2;

⇒ -2(x + 4) - 1(y - 2) = 0

⇒ -2x - 8 - y +2 = 0

⇒ y = -2x - 6

So, the point on the perpendicular line is (-2, -2).

All of these are shown in the graph below:

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let c(n) be a city's cost, in millions of dollars, for plowing the roads when n inches of snow have fallen. let c(n)

Answers

The cost of plowing the roads after 24 inches have fallen is increasing at a rate of $0.4 million per inch.

Evaluate this expression, we need to break this into two pieces. First, we have the value of c(15), so thankfully, we don't need to run any calculations to find it. This means that we just need to evaluate this definite integral, which is the integral of the derivative of c(n) from 15 to 24.

The Fundamental Theorem of Calculus relates a function to its antiderivative as a way to find the value of the integral of that function. Since the antiderivative of  , which we have the value for at the endpoints of this integral, we can evaluate this integral as follows.

[tex]\int\limits^a_b {c'(n)} \, dn = c(24 ) - c(15) = 0.4 - 0.6 = -0.2[/tex]

We can now find the value of this entire expression as follows.

[tex]c(15) +\int\limits^a_b {c'(n)} \, dn = 0.6 + (-0.2) = 0.4[/tex]

Since this represents the derivative of C(n), the cost for plowing the roads, this tells us that the cost of plowing the roads after 24 inches have fallen is increasing at a rate of $0.4 million per inch.

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because of limited space availability and a desire to provide an acceptable level of service, the bank manager would like to have no more than three cars in the system at any time (waiting in line or being served). what is the probability that there are no more than 3 cars in the system?

Answers

The probability that there are no more than 3 cars in the system is 0.50

Probability:

In math, the ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes is referred as probability.

Given,

Because of limited space availability and a desire to provide an acceptable level of service, the bank manager would like to have no more than three cars in the system at any time.

Here we need to find the probability that there are no more than 3 cars in the system.

Here we know that the present level of service for three or fewer cars is the probability that there are 0, 1, 2, or 3 cars in the system.

As per the Model 1, Exhibit 8A.8, the probability of having more than three cars in the system is 1.0 minus the probability of three or fewer cars => 1.0 − 0.685 = 31.5 percent

And the 95 percent service level of three or fewer cars, this states that

=> P0 + P1 + P2 + P3 = 95 percent.

When we can solve this by trial and error for values of λ/μ.

Therefore, the value of λ/μ = 0.50

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b(x) = 6x², when x = 16

Answers

General Formulas and ConceptsPre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightAlgebra I

Substitution

Functions

Function Notation

ApplicationStep 1: Define

Let's see what the problem as given us.

[tex]\displaystyle\begin{aligned}& b(x) = 6x^2 \\& x = 16\end{aligned}[/tex]

Step 2: Work

We can easily see that we can substitute in x as 16.

[Equation] Define given:
[tex]\displaystyle b(x) = 6x^2[/tex][Equation] Substitute in x:
[tex]\displaystyle b(16) = 6(16)^2[/tex]Apply Order of Operations:
[tex]\displaystyle \begin{aligned}b(16) & = 6(16)^2 \\& = 6(256) \\& = \boxed{1536} \\\end{aligned}[/tex]

Answer

∴ our final answer to the question is b(16) = 1536.

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Topic: Algebra I

Unit: Functions

Rectangular prism A is similar to rectangular prism B. The ratio of the surface of A to B is 4:1. If the volume of rectangular prism B is 12 cm3 , what is the volume of rectangular prism A?

Answers

The volume of rectangular prism A will be 48 cm³

How to find area of Rectangular Prism?

The volume of a rectangular prism is given by the formula:

A = lwh

Where:

l = length

w = width

h = height.

Since the surface ratio of rectangular prism A to rectangular prism B is 4:1, the ratio of the linear dimensions of A to B must also be 4:1.

This means that if one linear dimension of rectangular prism A is 4 times the size of the corresponding dimension of rectangular prism B, then all of the linear dimensions of A will be 4 times the size of the corresponding dimensions of B.

Since the volume of a rectangular prism is given by the product of its linear dimensions.

The volume of rectangular prism A will be 4 times the volume of rectangular prism B.

Therefore, if the volume of rectangular prism B is 12 cm³, the volume of rectangular prism A will be 4 * 12 cm³ = 48 cm³.

Hence, The volume of rectangular prism A will be 48 cm³.

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Please help asap
The number of people attending Convention A can be modeled by
f(x) = 1200 • 0.95^x, where x is the number of years that the convention has been
occurring. The number of people attending Convention B was 2200 in year 1 and 2100 in year 2. Which convention’s attendance is decreasing at a greater rate? Explain your reasoning.

Answers

For the given conditions convention B attendance is decreasing at a greater rate.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that, the number of people attending convention A can be modeled by the function as,

f(x) = 1200 • 0.95ˣ

where x is the number of years that the convention has been occurring.

The number of people attending convention A in year 1,

f(x) = 1200 × 0.95¹

f(x) = 1140

The number of people attending convention A in year 2,

f(x) = 1200 × 0.95²

f(x) = 1083

The number of people decreasing in the Convention A,

=1140 - 1083

=57

If the number of people attending Convention B was 2200 in year 1 and 2100 in year 2. The number of people decreasing in the Convention B,

=2200-2100

=100

Thus, for the given conditions convention B attendance is decreasing at a greater rate.

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How many solutions does the equation
-1/2(-8x+14) = 3x +9+x have?

Answers

The no: of solutions that the equation -1/2(-8x+14) = 3x +9+x  has is 1

What is an example of an equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

What are the 3 types of equations?

There are three major forms of linear equations: point-slope form, standard form, and slope-intercept form.

The no: of solutions that the equation is -1/2(-8x+14) = 3x +9+x is 1

as the equation is 1 degree polynomial.

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There are 95 green balls and 90 red balls in a box. How many balls must be chosen to
be certain we have the following?
One red and one green?

Answers

The number of balls that must be chosen to be certain we have One red and one green is; 5 balls.

What is the probability of selection?

We are given;

Number of green balls in box = 95 balls

Number of red balls in box = 90 balls

Thus;

Total number of balls in the box = 95 + 90

Total number of balls in the box = 185 balls

Now, the probability of getting one red from selection = 90/185

Probability of getting one green ball = 95/185

P(Red and Green) = P(R) * P(G)

P(R and G) =  = (90/185) * (95/185) = 0.2418

However, in this case we will make use of the unitary method which is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Thus, minimum number of balls to get the given selection = 95 - 90 = 5 balls

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A prestigious program accepts 2 out of every 9 applicants per yer. if the program accepted 360 applicants, how many applicants were not accepted?

Answers

The number of applicants that were not accepted are calculated to be 1260.

The number of applicants that were not accepted can be determined as follows;

Since 2 out of every 9 applicants are accepted; therefore the total number of applicants out of which 360 applicants were accepted can be calculated as follows;

360 × 9 / 2 = 3240 / 2 = 1620

Therefore the total number of applicants is calculated to be 1620, out of these 1620 applicants, 360 were accepted therefore the number of applicants that were not accepted can be determined by subtraction.

The number of applicants that were not accepted can be determined by subtracting the accepted applicants from the total number of applicants as follows;

Applicants not accepted = 1620 - 360

Applicants not accepted = 1260

Therefore 1260 applicants were not accepted by the program.

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2. Dottie needs to learn a total of 24 vocabulary words. She has learned 75% of the words.
How many of her vocabulary words did she learn so far?
A. 3
B. 6
C. 18
D. 21

Answers

18 because 24 • .75 is 18
75% of 24 is 18

You can get this by doing 0.75 (which is 75%) times 24

0.75•24=18

Dottie has read 18 vocabulary words so far.

24-18=6
(Total amount - amount read = amount left to read)

She still needs to read 6 vocabulary words.

The correct option would be option. C. 18 vocabulary words. 75% of 24 is 18.
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