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8_murik_8 [283]
3 years ago
13

The length of a rectangular floor is 5 feet less than twice its width. The area of the floor is 150 square feet. What is the len

gth of the room?
Mathematics
1 answer:
Anastasy [175]3 years ago
8 0
L=2W-5
A=L×W
A=150
(2W-5)×W=150
2W^2-5W=150
2W^2-5W-150=0
(2W+15)(W-10)=0
W=-15/2 answer not plausible
W=10
L=2W-5
L=2 (10)-5
L=20-5
L=15
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