SOLUTION: A rectangular hallway has an area of 70ft2. The width of the hallway is 4 feet. What is the length of the hallway?

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Question 399797: A rectangular hallway has an area of 70ft2. The width of the hallway is 4 feet. What is the length of the hallway?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

area A+=70ft%5E2
the width b=4ft

find the length a


A+=+a%2Ab

70ft%5E2+=+a%2A4ft

a+=70ft%5Ecross%282%29%2F4cross%28ft%29
a+=70ft%2F4
a+=+17.5ft