30-10-2017
Mathematics

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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?

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xzarriiaax xzarriiaax

30-10-2017

the answer would be 18 minutes.

15/9 = 30/x

cross multiply

15x=270

then divide

x=18

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