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The perimeter of a rectangular pool is 240 yd. If the length is 30 yd unless the four times the width, find the length and the width.

The perimeter of a rectangular pool is 240 yd If the length is 30 yd unless the four times the width find the length and the width class=

Respuesta :

eliseovillarral

Answer:

270 is the answer if you add

jcherry99

Answer:

Step-by-step explanation:

P = 2L + 2W

L = 4w - 30

w = w

P = 2(4w - 30) + 2W

but  P = 240

2(4w - 30) + 2w = 240         Remove the brackets.

8w - 60 + 2w = 240             Combine

10w - 60 = 240                     Add 60

10w - 60 + 60 = 240+60      Combine

10w = 300                             Divide by 10

w = 30

L = 4w - 30

L = 4*30 - 30

L = 120 - 30

L = 90

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