MATHEMATICS MIDDLE SCHOOL

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

Answers

Answer 1
Answer:

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

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Multiply. A= ?/8

Answers

The answer is : 63/8

The length and breath of a rectangle are (a^2 +ab +b^2) units and (a-b) units.Find the area of the rectangle.

Answers

Answer:

a^3 - b^3.

Step-by-step explanation:

Area = length * breadth

= (a - b)(a^2 + ab + b^2)

= a(a^2 + ab + b^2) - b(a^2 + ab + b^2)

= a^3 + a^2b + ab^2 - a^2b - ab^2 - b^3

Note: the 4 middle terms cancel out. So the answer is

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If x² equals 1/100 what does x equal

Answers

Hello!

If x² equals 1/100, then x equals 1/10 or -1/10.

I hope it helps!

Each side length of the parallelogram at the right is multiplied by four. Describe the change in the perimeter.

Answers

side length1 = x
side length2 = y

2x + 2y = perimeter

2(4x) + 2(4)y = new perimeter
8x + 8y = new perimeter

new perimeter = 4 times the old perimeter

jamie wants to run a total of 9 miles thid week. so far, she has run 4 5/8 miles. use the equation 4 5/8 + r = 9​. please help me!

Answers

Answer:

r = 4 3/8

Step-by-step explanation:

Micah is thinking of a two digit number. it is a multiple of 6 and 12. is a factor of 108. the sum of its digits is 9. what number is Micah thinking of

Answers

First, 12 is a multiple of 6, so we only need to look for multiples of 12. Also, it has to be smalle,r or equal to than 108 since it's its factor. So let's list the multiples of 12 smaller than 108:12,24,36,48,60,72,84,96,108. Of these only 36,72 and 108 have a sum of digits 9, but 108 is not a two digit number. 72 is not a factor of 108, but 36 is (if you multiply it by 3), so 36 is the correct answer!
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