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marshall27 [118]
3 years ago
8

A swimming pool is to be drained. The pool is shaped like a Rectangular prism with length 12m , with 10 m, and depth 3m. Suppose

water is pumped out of the pool at a rate of 18 m3 per hour.if the pool starts completely full , how many hours does it take to empty the pool ?
Mathematics
1 answer:
tiny-mole [99]3 years ago
6 0

Answer:

20 hours

Step-by-step explanation:

first calculate volume:

12x10x3=360

then divide by 18

360/18=20

So 20 hours in total

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Step 2. Multiply the denominators to get to 20. Whatever you do to the bottom (denominator) must be done to the top (numerator).

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Your fractions now all have a common denominator of 20n.

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Only focus on adding/subtracting the numerators; the denominators will stay the same: 20n.

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Combine like terms:

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Factor out any numbers possible:

3(6 - 5n)/20n

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