HELP
18 kg of apples cost $106.20. How much would 31 kg cost?
(second post cause why not)

Answers

Answer 1
$182.9 pls give brainliest
Answer 2

Answer:

$182.90

Step-by-step explanation:

Find the cost per kg. To do so, divide the total cost, with the amount of kg that is bought:

(Total Cost/Total weight) = (cost/unit):

[tex]\frac{106.20}{18} = 5.9\\\\[/tex]

$5.9 per kg of apple.

~

Next, solve for the amount that 31 kg of apples would cost. Multiply the unit cost with the amount of kg of apples purchased:

(Total weight of apples x Cost per kg for apples) = Total cost:

[tex]31 * $5.9 = Total Cost\\Total Cost = 182.9[/tex]

$182.90 is your answer.

~


Related Questions

What is sin 45 simplified?.

Answers

Under Trigonometric ratios, the values of sin, cos, and tan are defined by the ratio of sides of a right-angled triangle.

 One of the three fundamental functions in trigonometry, along with cosine and tan functions, is the sine function.

The ratio of the opposite side of a right triangle to its hypotenuse is known as the sine x or sine theta.

To determine a right triangle's unknown angle or sides, utilize the sine function. The sine function for any right triangle with an angle, let's say ABC, will be:

Opposite/hypotenuse = Sin

According to the trigonometric table, the value of Sin 45=[tex]\sqrt[/tex]2/2 which can be simplified as [tex]\sqrt{2} /2[/tex]×[tex]\sqrt{2} /\sqrt{2} =2/\sqrt[]{2}[/tex][tex]=1/\sqrt{2}[/tex]

Simplified value of Sin 45=1/[tex]\sqrt{2}[/tex]

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Write the explicit function defines the sequence -8, -6, -4, ...?

Answers

Answer:

I think it's -2

Step-by-step explanation:

because it keeps going down by 2 and 4-2=2 so its -2

An assorted snack tray has three popcorn bags, four granola bars, and six apples. What is the probability that the next two customers both select popcorn

Answers

The probability that the next two customers would both select popcorn is 1/78.

What is the probability?

Probability is the odds that a random event would happen. The odds that the random event happens has a probability value that lies between 0 and 1. The more likely it is that the event would occur, the closer the probability value would be to one.

The probability that the next two customers would both select popcorn = number of popcorns / total number of snacks x [(number of popcorns / total number of snacks) - 1]

Total number of snacks = 3 + 4 + 6 = 13

2/13 x 1/12 = 1/78

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Create a number pattern that follows the rule
x
+
7
. Include 3 terms using the pattern.

Answers

Answer: 8, 9, 10

Step-by-step explanation:

Set [tex]x=1, 2, 3 \implies x+7=8, 9, 10[/tex].

Please help! Its worth 15 point things

Answers

It will cost Caden $5445 to paint the outside walls and roof of the warehouse.

What is the superficial area of the warehouse?

The superficial area can be calculated using the following formula:

2 (lh +wh + lw )

2 (38 x 45 + 30 x 45 +38 x 30)

2 (1710 + 1350 + 1140)

2 x  4200

8400 square foot

Now, let's subtract the area of the floor that will not be painted.

30 x 38 = 1140

8400 - 1140 = 7260 feet to be painted

How much will it cost to paint this area?

7260 x 0.75 = $5445

Based on this, the total cost to paint the area desired is $5445.

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Please help me with this

Answers

Answer:

1 d.p to c 7m

Step-by-step explanation:

you should use phythagoras theorem to caculate the leght of BF ang that is my answer

Use the distributive property to write an expression that is equivalent to 8(a + 4)

Answers

Using the distributive property we will find the equivalent expression:

8*(a + 4) = 8a + 32

How to use the distributive property?

Remember that the distributive property for the multiplication says that:

A*(B + C) = A*B + A*C

So we distributed the product along the addition.

Here we want to rewrite the expression:

8*(a + 4)

Using the distrubitive property, we can rewrite this as:

8*(a + 4) = 8*a + 8*4

              = 8a + 32

That is the equivalent expression.

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Ai Mi has a loyalty card good for a 13% discount at her local hardware store. What would her total in dollars and cents be, after the discount and before tax, if the total cost of all the items she wants to buy is $39? Round to the nearest cent.

Answers

In linear equation, $33.93 would her total in dollars and cents be, after the discount and before tax, if the total cost of all the items she wants to buy is $39.

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept. Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables. Equations with variables of power 1 are referred to be linear equations. One example with only one variable is where ax+b = 0, where a and b are real values and x is the variable.

Item she wants to buy is priced at $39

After the discount, and before tax, the price is $33.93.

39.00 x .13 = 5.07

39.00 - 5.07 = $33.93

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Use trigonometric identities to simplify each expression
c) sec^2(pi/2-x) (sin^2(x)-sin^4(x))

Answers

Using trigonometric identities to simplify the expression, we have sec²(π/2 - x) (sin²(x)-sin⁴(x)) = cos²x

What are trigonometric identities?

Trigonometric identities are equations that contain the trigonometric ratios.

How to use trigonometric identities to simplify the expression?

Since we have the trigonometric expression sec²(π/2 - x) (sin²(x)-sin⁴(x))

We desire to simplify it as follows.

sec²(π/2 - x) (sin²(x)-sin⁴(x))

Using the trigonometric identity sec²(π/2 - x) = 1/cos²(π/2 - x), we have that

sec²(π/2 - x) (sin²(x)-sin⁴(x)) = 1/cos²(π/2 - x) × (sin²(x)-sin⁴(x))

Also, using the fact that cos²(π/2 - x) = sinx, we have that

1/cos²(π/2 - x) × (sin²(x)-sin⁴(x)) = (sin²(x) - sin⁴(x))/sin²x

Factorizing out sin²x, we have that

(sin²(x) - sin⁴(x))/sin²x = (sin²(x)(1 - sin²(x))/sin²x

= 1 - sin²x

= cos²x

So, sec²(π/2 - x) (sin²(x)-sin⁴(x)) = cos²x

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Tom i 5 year older than jerry. In 2 year, jerry will be three fourth a old a tom. Find their age now

Answers

Their age now are 13 years old for Jerry and 18 years old for Tom.

How to find their age?

As per data given, Tom age now = 5 + Jerry age now. After time = 2 year, Tom age : Jerry age = 4 : 3. We can determine their age now by substitute methods as follow:

After 2 years = Tom age  : Jerry age = 4 : 3

Tom age now + 2 : Jerry age + 2 = 4 : 3

Substitute Tom age now to jerry age now from first formula, so:

Tom age now + 2 : Jerry age now + 2 = 4 : 3

5 + Jerry age now + 2 : Jerry age now + 2 = 4 : 3

3 ( 5 + Jerry age now + 2)  = 4 (Jerry age now + 2)

21 + 3 Jerry age now = 4 Jerry age now + 8

Jerry age now = 21 - 8

Jerry age now = 13 years old

Find the tom age from first formula

Tom age now = 5 + Jerry age now

Tom age now = 5 + 13

Tom age now = 18 years old

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Is A ={ x x² 4 and 3x 9 an empty set justify your answer?.

Answers

x²= 4 and 3x=9 is not an empty set because there is no element we can say that is an empty set but there is an element, so it is not an empty set.

In arithmetic, the empty set is a completely unique set having no elements; its size or cardinality (depending on elements in a fixed) is 0. some axiomatic set theories make certain that the empty set exists by including an axiom of the empty set, whilst in different theories, its lifestyles may be deduced. Many feasible properties of sets are vacuously genuine for the empty set.

Any set aside from the empty set is known as non-empty. In a few textbooks and popularizations, the empty set is known as the "null set". but, a null set is a distinct belief inside the context of the measure concept, wherein it describes a hard and fast degree 0 (which is not always empty). The empty set may also be referred to as the void set.

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Complete Question:

Is A={x:x²=4 and 3x=9} an empty set justify your answer?

the circumference of a circle is 74.48

Answers

Answer:

question is not mentioned properly

Step-by-step explanation:

i can answer but first what's the question

R is the midpoint of QS and P is the midpoint of QT
If ST=u+60 and PR = 4u+2, what is PR

Answers

By using the fact that the triangles are similar, we can see that u = 8, then the length of side PR is:

PR = 68

How to find the length PR?

We know that R is the midpoint of QS and P is the midpoint of QT, this means that tiangles QRP and QST are similar triangles, and that the scale factor between them is 2.

Then we know that:

ST = 2*RP

We know that:

RP = 4u + 2

ST = u + 60

Then we can write the linear equation:

u + 60 = 2*(4u + 2)

u + 60 = 8u + 4

60 - 4 = 8u - u

56 = 7u

56/7 = u

8 = u

Now we can find the length of side PR.

PR = u + 60

PR = 8 + 60

PR = 68

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Can anyone answer this math question for me?

Answers

The correct answer is option A (4, 3), 35 units squared.

How to find the vertices?

The coordinates of the three vertices of a rectangle are :

A(-3,3) ,  b(-3,-2)  and   c(4,-2)

The easy way to find the fourth vertex by the graphing the given points

See the attached figure

the given points are in blue color

and by using the symmetry of the rectangle

So, the coordinates of the fourth point D is (4,3) which are in red color

The base of the rectangle is the distance BC

From the graph ⇒⇒ BC = 7

The height of the rectangle is the distance AB

From the graph ⇒⇒ AB = 5

The area of the rectangle = base * height = 7 * 5 = 35

So, the correct answer is option A(4, 3), 35 units squared.

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/
A company sells shirts for $10 each. Its revenue function is r(x) = 10x.
Its costs are $3 per shirt plus $9,000 of fixed costs. Its cost function is
c(x) = 3x + 9000. Use this information for Problems 13-15. The first
one is done for you.
13. Find the company's revenue and costs if it sells 2000 shirts.
Revenue = $20,000; costs = $15,000
14. Profit equals the difference between revenue and cost. Write the
function, p(x), for this company.
15. In 2012, the company sold 5000 shirts. Find its profit.
1
Original content Copyright by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsi
135

Answers

a) To find the company's revenue and costs if it sells 2000 shirts, we can substitute 2000 for x in the given revenue and cost functions:

What does a math equation mean?

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.

Revenue: r(x) = 10x, so r(2000) = 10(2000) = $20,000

Costs: c(x) = 3x + 9000, so c(2000) = 3(2000) + 9000 = $15,000

b) The profit function, p(x), is the difference between the revenue function and the cost function. So, the profit function for this company is:

p(x) = r(x) - c(x) = 10x - (3x + 9000) = 7x - 9000

c) To find the company's profit in 2012, when it sold 5000 shirts, we substitute 5000 for x in the profit function:

p(5000) = 7(5000) - 9000 = $20,000

So, the company had a profit of $20,000 in 2012 when it sold 5000 shirts.

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What is it called when you substitute a number for each variable and simplify?.

Answers

When you substitute a number for each variable and simplify it is called a Substitution method.

I will demonstrate how the substitution method works. Suppose we have the following systems of linear equations with two variables:

Equation 1:  3x + 2y = 11

Equation 2:  -x + y = 3

By solving these two equations we get x=1 and y=4.

The substitution method is a quick and easy way to algebraically solve a set of linear equations and determine the variables' solutions. According to what the name implies, this method entails determining the value of the x-variable in terms of the y-variable from the first equation and then substituting or replacing the value of the x-variable in the second equation. We can solve and determine the value of the y-variable in this method. Finally, we may use any of the above equations to obtain x by substituting the value of y. This procedure can also be switched around so that we first solve for x before solving for y.

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find the size of QRS.

8 cm
12 cm
4 cm
Q
R
P

Answers

The size of QRS in the given figure 15 cm.

How to find the size of QRS?

A fundamental Euclidean geometry relationship between the three sides of a right triangle is the Pythagorean theorem, also referred to as Pythagoras' theorem. According to this definition, the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.

step1

We know

PS=8cm

PQ=12cm

QR=4cm

because we know that both of these parts have to do with right triangles, we know that we can use the Pythagorean theorem.

a²  + b²  = 4²  (add in values)

8²  + 12² +4²   

64 + 144 +16=224

find the square root of 224= 15

Size of QRZ =15 cm

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How do you find a 60 degree triangle?.

Answers

60° triangle can be calculated in radians as π/3 radians.

60 degree angle is an acute angle in geometry and is expressed as π/3 in radians. Each angle in an equilateral triangle is equal to 60 degrees.

A 60-degree angle is an acute angle since angles less than 90 degrees are considered acute. In the case of a geometric angle, the arc is confined by the sides and is centered at the vertex. When rotated, the arc is centered in the center of rotation and is limited to any other point and its image.

Thus, 60° triangle can be calculated in radians as π/3 radians.

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Do the points 3 2 2 3 and 2 3 form a triangle?.

Answers

Yes, the given points  (3 ,2) , ( -2 ,- 3 ),  and ( 2, 3 ) forms a triangle.

As given in the question,

Given points to form a triangle is given be :

(3 ,2) , ( -2 ,- 3 ),  and ( 2, 3 )

Let the triangle name be ABC.

Coordinates of vertex A(x₁ ,y₁ ) = ( 3, 2 )

Coordinates of vertex B(x₂ ,y₂ )  = ( -2, -3 )

Coordinates of vertex C(x₃, y₃) = ( 2, 3 )

General distance formula is :

= √ ( x₂ - x₁ )² + ( y₂ - y₁ )²

Distance between :

AB = √( -3-2)² + (-2 -3)²

     = 5√2

BC = √(3+ 3)² + (2 + 2)²

     = 2√13

CA = √( 3-2)² + (2 -3)²

     = √2

Using Pythagoras theorem we have:

( Hypotenuse )² = ( Side1 )² + ( Side 2)²

Right hand side

= (5√2)² + (√2 )²

= 50 + 2

= 52

= ( 2√13)²

= Left hand side

This implies the triangle formed by the points is right angled triangle.

Therefore, yes the given points forms a right angled triangle.

The above question is incomplete , the complete question is:

Do the points (3 ,2) , ( -2 , -3 ),  and ( 2, 3 ) form a triangle?.

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what is the exact value of cos 5pi/12

Answers

The value of cos 5pi/12 is found to be 0.2588.

Define the term trigonometric ratios?Trigonometric ratios are derived from the value of a ratio of sides of a right-angled triangle and contain the values of all trigonometric functions. These trigonometric ratios of a given acute angle are the ratios of the sides of either a right-angled triangle having respect to that angle.

The given trigonometric ratio is-

= cos (5π/12)

The value of π in degrees is 180, substitute it.

= cos (5*180/12)

= cos (900/12)

= cos (75)

Using calculator

≈ 0.2588

Thus, the value of cos 5pi/12 is found to be 0.2588.

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simplify:cos^2(90°+ß) sin(90°-ß)/cos(360°+ß) sin(360°-ß) sin(180°-ß)​

Answers

By trigonometric formulas and algebra properties, the trigonometric equation [cos² (90° + β) · sin(90° - β)] / [cos (360° + β) · sin (360° - β) · cos (180° - β)] is equivalent to - 2.

How to simplify a trigonometric equation

In this question we find a trigonometric equation, that is, an equation involving trigonometric functions, that must be simplified by trigonometric formulas and algebra properties. First, write the entire trigonometric formulas:

[cos² (90° + β) · sin(90° - β)] / [cos (360° + β) · sin (360° - β) · cos (180° - β)]

Second, eliminate the cosine squared of the equation by trigonometric formula:

[[1 + cos (180° + 2 · β)] · sin(90° - β)] / [cos (360° + β) · sin (360° - β) · sin (180° - β)]

[sin (90° - β) + cos (180° + 2 · β) · sin(90° - β)] / [cos (360° + β) · sin (360° - β) · sin (180° - β)]

Third, simplify the trigonometric functions for angle additions and subtractions:

[sin (90° - β) + cos (180° + 2 · β) · sin(90° - β)] / [cos (360° + β) · sin (360° - β) · cos (180° - β)]

[cos β - cos 2β · cos β] / [cos β · sin (- β) · sin β]

- (cos β - cos 2β · cos β) / (cos β · sin β · sin β)

Fourth, simplify the expression by algebra properties:

- (1 - cos 2β) / sin² β

(cos 2β - 1) / sin² β

Fifth, eliminate the double angle by trigonometric formulas:

(cos² β - sin² β - sin² β - cos² β) / sin² β

Sixth, simplify the expression by algebra properties:

- 2 · sin² β / sin ² β

- 2 · 1

- 2

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Graph and please explain answer with steps!
f(x)=-x+3,x<=-3
f(x)=-x^(2)+6,x>-3

Answers

The graph of the function f(x)=-x+3,x<=-3 and f(x)=-x^(2)+6,x>-3 is given attachment.

What is function?

A function is a procedure or a relation that links each element of a non-empty set A, at least, to one element of a different non-empty set B. In mathematics, a relation f between two sets, A and B, is referred to as the function's domain and co-domain, respectively. f = {(a,b)| for all a ∈ A, b ∈ B}

If each element of set A has exactly one image in set B, then the relation is said to be a function.

A function is a relation from a non-empty set B such that its domain is A and no two different ordered pairs in f share the same first element.

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7
If f(x)=√x-5 and g(x) = -x², what is the value of g(f(9))?
A 4
C 16
B -14
D 2

Answers

Option (a) represents the correct answer i.e. The value of g(f(9)) is -4.

What is a function?

A relation known as a function connects members of one set in a specific way to those of another set.

Given, f(x)=√x-5 and g(x) = -x²

here, g(f(x)) = g(√x-5 )

                  = - (√x-5)²

 So,  g(f(9)) = - (√9 - 5)²

                   = - (3-5)²

                   = -4

Hence, Option (a) is correct.

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Option (a) represents the correct answer i.e. The value of g(f(9)) is -4.

What is a function?

a mathematical phrase, rule, or law that establishes the link between an independent variable and an outcome variable (the dependent variable). An input and also an output are linked by a function. It functions similarly to a machine with an input or an output. Additionally, the input and output are somehow connected. The traditional format for writing a function is f(x) "f(x) =... "

Given, f(x)=√x-5 and g(x) = -x²

here, g(f(x)) = g(√x-5 )

                 = - (√x-5)²

So,  g(f(9)) = - (√9 - 5)²

                  = - (3-5)²

                   = -4

Hence, Option (a) is correct.

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If You Are Measuring The Electrical Potential Difference From A Rectangular \( 9 \Mathrm{~V} \) Battery, Which Setting Should You

Answers

A battery is a nice illustration. Atoms have had their electrons chemically removed in batteries. Because the positive ions and electrons are stored at the opposing ends of the battery, there is a potential difference between the two ends.

What is Rectangular?A rectangle in Euclidean plane geometry is a quadrilateral with four right angles. It can alternatively be explained in terms of an equiangular quadrilateral a term that refers to a quadrilateral whose angles are all equal or a parallelogram with a right angle. A square is an irregular shape with four equal sides. A rectangle is a sort of quadrilateral with parallel sides that are equal to one another and four vertices that are all 90 degrees apart. Because of this, it is also known as an equiangular quadrilateral. Because the opposite sides of a rectangle are equal and parallel, it can also be referred to as a parallelogram.

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Amy flicks the spinner 200 times and it comes up gray 157 times. Do you think Amy's spinner is fair? Explain.

Answers

The percentage of getting grey is 78.5%. Amy's spinner is fair.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Amy flicks the spinner 200 times and it comes up grey 157 times.

The percentage of the grey comes up 157 times will be calculated as:-

P = 157 / 200

P = 0.785 x 100

P = 78.5%

Amy's spinner is fair.

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What number is one more than 79?.

Answers

The number one more than 79 is 80.

Number:

Numbers are mathematical objects used for counting, measuring, and labeling. The original example is the natural numbers 1, 2, 3, 4, etc. [1] Numbers can be linguistically represented by numerals. More generally, individual numbers can be represented by symbols called digits. For example, "5" is the number representing the number five. Since only a relatively small number of symbols can be remembered, basic numbers are usually organized into number systems, which are systematic ways of representing each number. The most common number system is the Hindu-Arabic number system, which can represent any number using combinations of 10 basic numeral symbols called digits.  In common parlance, a number is indistinguishable from the number it represents.

Greater than Number:

It is a mathematical term used to compare two quantities and to establish a relationship between two quantities in which one term is greater than the other. The terms greater than, less than, and equal are used to compare two numbers, amounts, or amounts. Each term has a separate letter. B. "greater than" is represented by ">", "equal to" is represented by "=", and "less than" is represented by "<".

According to the Question:

To better understand this question,

It can be expressed as 1 more than 79, 1 more than 79, 1 more than 79, 79 plus 1.

Thus,

1 more than 79 is the same as 79 plus 1. So the answer for 1 greater than 79 is calculated as:

Therefore,

1 + 79 = 80.

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HELP MEEEEEEE PLEASEEEEEEEE

Answers

Answer:

A to B:  Scale of 3, and (10,6)

B to A:  Scale of (1/3) and (10,6)

Step-by-step explanation:

See attached worksheet.

you go to a store to buy clothes. shirt cost 10.25$ each and pants cost $17 each. let x equal the number of shirts and y equal the number of pants you buy. you can only spend up tp $50 at the store.

Answers

Answer:

10.25x+17y ≥ 50

Step-by-step explanation:

10.25x is how much shirts you can buy

17y is how much pants you can buy

50 is the total money you can spend

HOPE THIS HELPED!

The inequality that represents the situation is 10.25x + 17y ≤ 50.

What is an inequality?

In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to each other. To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.

Given:

You go to a store to buy clothes.

The shirt cost 10.25$ each and the pants cost $17 each.

Let x equal the number of shirts and y equal the number of pants you buy. you can only spend up to $50 at the store.

That means,

10.25x + 17y ≤ 50

Therefore, the inequality is 10.25x + 17y ≤ 50.

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Help i want answerrrrrrrr pls

Answers

The length of TW is given as follows:

TW = 17.4 units.

How to obtain the length of TW?

The length TW is the hypotenuse of a right triangle of sides WU and UT.

The Pythagorean Theorem states that for a right triangle, the length of the hypotenuse squared is equals to the sum of the squared lengths of the sides of the triangle.

The side lengths are given as follows:

TU = 12.6, as it is tangent just like TV.WU = 12.

Hence the length TW is obtained as follows:

(TW)² = 12.6² + 12²

[tex]TW = \sqrt{12.6^2 + 12^2}[/tex]

TW = 17.4 units.

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Why is the square root of x undefined?.

Answers

The square root of negative x undefined is undefined for the set of Real numbers.

We know that the square root of a number is nothing but the factor/value that we can multiply by itself to get that number.

Finding a square root of number is an inverse method of squaring a number.

A radical symbol '√' used to represent the square root of number.

If m is the square root of n, then it is represented as m = [tex]\sqrt{n}[/tex],

We can write above relation as, m² = n

We know that square of any real number is positive.

For example, 3² = (3 × 3) = 9

(-3)² = (-3) × (-3) = 9

i.e., the square root of 9 is 3 and -3

Thus the square root of number is not defined for negative real number.

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Why is the square root of negative x undefined?.

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