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01-05-2020
Mathematics

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The area of a rectangular swimming pool is 360 square feet. If the length of the swimming pool is 9 feet more than its width, find the length of the pool

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01-05-2020

Answer:

l = 24ft

Step-by-step explanation:

A = lw

360 = (x + 9)(x)

360 = x^2 + 9x

0 = x^2 + 9x - 360

0 = (x + 24)(x - 15)

x ≠ -24 (length cannot be negative)

x = 15

l = 15 + 9

l = 24ft

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