Question

the perimeter of a rectangle equals the sum of the lengths of its four side. if the width of rectangle is 8 inches and its perimeter is 40 inches, find the length of the rectangle.

Answer 1

im lost

Answer 2

Let the length be L
Let the width be W
Let the perimeter be P

P = L + L + W + W

Right?

Answer 3

P=2L+2W

Answer 4

That's good.
Now substitute all variables you know by the numbers you are given:
W = 8 and P = 40

Answer 5

40 = 2L + 2(8)
Now solve for L

Answer 6

16

Answer 7

\(16 + 16 + 8 + 8 \ne 40 \)

Answer 8

im lost

Answer 9

\(40 = 2L + 2(8)\)

\(40 = 2L + 16\)

\(24 = 2L\)

\(12 = L\)

The length is 12 inches.

Answer 10

8

Answer 11

im lost

Answer 12

https://maps.google.com/

Answer 13

primeralph what you want me to do