The area of a rectangular floor is represented by 9x^2 + 15x square feet and the width of the floor is 3x feet. Which expression
represents the length of the floor?
a. 8x ft
b. (3x + 5) ft
c. (3 + 5x) ft
d. (9x2 + 12x) ft
1 answer:
To work this out, we must divide the area by the width
(9x² + 15x) / 3x
First 9x²
9x² / 3x = 3x
Then 15x
15x / 3x = 5
3x + 5 ft
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Step-by-step explanation:
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