Question

the water reservoir for a city is shaped like a rectangular prism 210 meters long, 50 meters wide, and 14 meters deep. at the end of the day, the reservoir is 90% full. how much water must be added overnight to fill the reservoir?

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to fill the reservoir, of water must be added overnight.

square meters
cubic meters
meters

Explanation:

Calculate total volume of the reservoir

Using the Volume of Rectangular Prism knowledge point

$$ V = l \times w \times d = 210 \times 50 \times 14 = 147000 \text{ cubic meters} $$

Calculate the volume needed to fill the reservoir

Using the Percentage Calculation knowledge point

$$
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$$

Answer:

To fill the reservoir, <blank>14,700</blank> <blank>cubic meters</blank> of water must be added overnight.