SOLUTION: The area of a rectangle is 84 square feet. The ratio of the width to the length is 3:7. Find the width of the rectangle.

Algebra ->  Rectangles -> SOLUTION: The area of a rectangle is 84 square feet. The ratio of the width to the length is 3:7. Find the width of the rectangle.       Log On


   

Question 326375: The area of a rectangle is 84 square feet. The ratio of the width to the length is 3:7. Find the width of the rectangle.



Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
W%2FL=3%2F7
W=%283%2F7%29L
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L%2AW=84
L%2A%283%2F7%29L=84
L%5E2=84%2A%287%2F3%29
L%5E2=196
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L=14ft
W=%283%2F7%2914=6ft