The volume of water in a reservoir decreases 21,000 cubic yards over a 3 month period. What is the average change in volume per month?

2 answers

Luckily it is easy to divide 21 by 3.
21000yd^3/3mo = 7000 yd^3/mo

You would have to divide 21,000 and 3 to get the answer. 21,000 divided by 3 = 7,000. So, the average change in volume per month is 7,000.

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