MATHEMATICS MIDDLE SCHOOL

Can any one help me with this?

Answers

Answer 1

Answer:

Answer: to #3 is no it is not a function

Step-by-step explanation:

Answer 2

Answer: 10. x= -1

3x + 7 =11x +15
-3x -3x

7=8x + 15
-15. -15

-8=8x
—. —
8. 8

X=-1

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John built and drew a structure that has a volume of s cubic centimeters. His little brother tells him he made a mistake because he only drew 4 cubes. Help John explain to his brother why his drawing is accurate.

Answers

it is accurate because he cannot see the 5th cube, it is under the top cube and covered by the rest

The cube on top of the other 4 will not be able to stand without a base.

Write a real world problem for the equation 15w = 45 then solve the problem

Answers

A employer sells boxes of ink for 45 dollars. Each box costs $15. How many boxes did he sell?

15w = 45
15w/15 = 45/15
w = 3

He sells 3 boxes

Henry makes pieces of ribbon 15 feet each. The total amount of ribbon he uses is 45 feet. How many pieces of ribbon did he make? 3 pieces of ribbon

What is the total cost of a $12.60 item plus 7% sales tax?

Answers

To take a percent, move the decimal point of the percent two places to the left. 7% = 0.07

Then multiply:

12.60 • 0.07 = 0.88

12.60 + 0.88 = 13.48

The total cost is: $13.48

7% = 0.07
12.60 * 0.07 = 0.88
12.60+0.88 =13.48
$13.48
I hope this helps;)

What equals 44 in multiplication?

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22 times 2, 44 times 1, and 11 times 4 those are some examples. Hope this Helps! :D

Show me 475 in expanded form

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400+70+5 because 400 is in the hundreds place and 70 in the tens place while 5 is in the ones place.

400+90+0+5 is the answer

Area of a rectangle with a width of 36cm and a perimeter of 80cm

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The area would be 144cm^2.

In order to find the area, we need to know the length of the rectangle. We can find that using the perimeter formula.

2l + 2w = P

2l + 2(36) = 80

2l + 72 = 80

2l = 8

l = 4

So now that we know the length is 4, we can find the area using that formula.

A = lw

A = (4)(36)

A = 144