MATHEMATICS MIDDLE SCHOOL

A decorator wants to line the bottom of 3 drawers with paper. If the bottom of each drawer measures 36 inches by 20 inches,how many square inches of paper are needed?
A 1,040
B
1,080
C 2,040
D
2,160

Answers

Answer 1
Answer:

Answer:

2160

Step-by-step explanation:

36*20=720      720*3=2160

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If the sales tax is 6.75%, how much tax would Adrian pay if he bought two CD's at $16.99 each and one DVD for $36.29.

Answers

CD:2 at $16.99 each=$33.98
DVD:1 at $36.29
$33.98+$36.29=
$70.27
6.75%*70.27=4.743225
round to the nearest tenth:
4.74
Andrian will pay 
$4.74 as sales tax 

Which graph represents the rational function f(x)=x^2-16/x^2-2x-8?

Answers

Answer:

d

Step-by-step explanation:

Which expression is equivalent to 3.5x+1.5x+2-1/2

Answers

The most simplified version would be:
5x+1.5

Combine the like terms to simplify the expression:9 + 3 + 17xy2 + 8y3 + 10x –13xy2 – 9x – 6y3
A. 2y6 + 4x2y2 + 10x + 12
B. 2y3 – 4xy2 – 3x + 12
C. 2y3 + 4xy2 + 10x + 9
D. 2y3 + 4xy2 + x + 12

Answers

9 + 3 + 17xy² + 8y³ + 10x - 13xy² - 9x - 6y³
rearrange like terms together
(in descending exponential order)
8y³ - 6y³ + 17xy² - 13xy² + 10x - 9x + 9 + 3
2y³ + 4xy² + x + 12

Answer is: D.2y³ + 4xy² + x + 12

4. Ellie uses 12.5 pounds of potatoes to make mashed potatoes. She uses one-tenth as many pounds of butter as potatoes. How many pounds of butter does Ellie use?

Answers

1.25 pounds (sorry i had to use more characters)

Alexandra purchases two doughnuts and three cookies at a doughnut shop and is charged $3.30. Brianna purchases five doughnuts and two cookies at the same shop for $4.95. All the doughnuts and cookies have the same price. Find the cost of one doughnut and the cost of one cookie.

Answers

The cost of one doughnut is $0.75 and the cost of one cookie is $0.60.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

Alexandra buys two doughnuts and three treats at a donut shop and is charged $3.30. Brianna buys five doughnuts and two treats at a similar shop for $4.95. Every one of the doughnuts and treats has a similar cost.

Assume 'x' is the cost of doughnuts and 'y' is the cost of one cookie. Then the equations are given as,

2x + 3y = 3.30         ...1

5x + 2y = 4.95        ...2

Multiply equation 1 by 5 and equation 2 by 2, then we have

10x + 15y = 16.50     ...3

10x + 4y = 9.90       ...4

Subtraction equation 2 from equation 1, then we have

15y - 4y = 16.50 - 9.90

11y = 6.60

y = $0.60

Then the value of 'x' is given as,

2x + 3(0.60) = 3.30

2x + 1.80 = 3.30

2x = $1.50

x = $0.75

The expense of one donut is $0.75 and the expense of one treat is $0.60.

More about the solution of the equation link is given below.

brainly.com/question/545403

#SPJ2
Answer:1 donut=$0.75 and 1 cookie=$0.6

let c be the cookie and d be the dougnut

2d +3c = 3.30 ---eq 1
5d+ 2c = 4.95 ---eq 2
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