A pool is filling with water at a constant rate.after 10 minuets the height of the water level is 6 inches.after 15 minuets the
water level is now at 9 inches when will the pool be completely filled if the entire pool is 30 inches deep?
1 answer:
The answer would be 18 minutes.
15/9 = 30/x
cross multiply
15x=270
then divide
x=18
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