Question

NEED ASAP! WILL PUT BRAINLIEST IF CORRECT!The length of a rectangle is three times its width. The perimeter of the rectangle is 100 inches. What are the dimensions of the rectangle?

Do it in Solving Linear Systems by Substitution.

Answer 1

Answer: length is 36.5

               width  is 12.5

Step-by-step explanation:

P=2*(a+b)

a -length

b- width

--------------

a=3b

P/2=3b+b

100/2=4b

b=50/4

b=12.5 inch

a=3*12.5

a=36.5 inch

Answer 2

Answer:

length is 36.5

              width  is 12.5