SOLUTION: you can find the perimeter of rectangle if you subtract the width from the length, add 7 inches, and multiply the result by 4. a.If the rectangle's length is l and its width is

Question 174481This question is from textbook algebra 1
: you can find the perimeter of rectangle if you subtract the width from the length, add 7 inches, and multiply the result by 4.
a.If the rectangle's length is l and its width is w, what is the perimeter? This question is from textbook algebra 1

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
you can find the perimeter of rectangle if you subtract the width from the length, add 7 inches, and multiply the result by 4.
:
P = 4(L - W + 7)
:
a.If the rectangle's length is l and its width is w, what is the perimeter?
:
P = 4(1 - w + 7)
:
P = 4(8 - w)
:
P = 32 - 4w
:
Find P; we know 2L + 2w = 32 - 4w, substitute 1 for L
2 + 2w = 32 - 4w
:
2w + 4w = 32 - 2
:
6w = 30
w =
w = 5
:
P = 2(1) + 2(5)
P = 12
:
:
Check solution in original equation
P = 4(1 - 5 + 7)
P = 4(3)
p = 12
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