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10 September, 06:49

A pool is in shape of a rectangular prism. on monday water was pumped out of the pool at a constant rate starting at 12:00 pm to 12:15 pm the water in pool was 45 inches deep. at 12:35 pm the water in the pool was 41 inches deep by how many inches does the depth of the water decrease each minute?

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  1. 10 September, 07:03
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    From 12:15 to 12:35, 20 minutes have passed. 4 inches of water have drained in this 20 minutes.

    4 inches in 20 minutes equals 1/5 inch per minute.

    1/5 inch is the amount of decrease per minute.
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