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LUCKY_DIMON [66]

3 years ago

11

The perimeter of a swimmingpool is 78 feet. The difference between four times the length and the width is 73.5 feet. What are th

e length and the width of the pool ?

1 answer:

Marianna [84]3 years ago

3 0

Answer:

Length is 22.5 ft

Width is 16.5 ft

Step-by-step explanation:

4L-w=73.5

4L=73.5+w

L=(73.5+w)/4

P=78

P=2L+2w

78=2[(73.5+w)/4]+2w

78=(73.5+w)/2+2w

78=(73.5+w+4w)/2

2•78=73.5+5w

156=73.5+5w

156-73.5=5w

82.5=5w

82.5/5=w

16.5=w

L=(73.5+w)/4

=(73.5+16.5)/4

=90/4

L=22.5

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