SOLUTION: A rectangular area is enclosed with fencing where the width is 5 feet less than the length. If the area is 300 square feet, what is the width?
Question 823438: A rectangular area is enclosed with fencing where the width is 5 feet less than the length. If the area is 300 square feet, what is the width? Answer by ewatrrr(24785) (Show Source):
Hi,
A rectangular area is enclosed with fencing
where the width is 5 feet less than the length. width is .
If the area is 300 square feet, what is the width?
A = lw = x(x-5) = 300ft^2
x^2 - 5x - 300 = 0
(x +15)(x-20) = 0 |tossing out the negative solution for unit measure
x = 20ft, the length and the width is 15ft .
