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Isabella cares for an aquarium that is 6 feet long and has a height of 4 feet. The aquarium needs 72 cubic feet of water to be completely filled. What is the width of the aquarium?

Isabella cares for an aquarium that is $6$ feet long and has a height of $4$ feet. The aquarium needs $72$ cubic feet of water to be completely filled. What is the width of the aquarium?

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Area and perimeter: word problems

Full solution

Q. Isabella cares for an aquarium that is

6

feet long and has a height of

4

feet. The aquarium needs

72

cubic feet of water to be completely filled. What is the width of the aquarium?

Identify Formula: Identify the formula to calculate the volume of the aquarium. $\newline$ Volume of a rectangular prism = $Length \times Width \times Height$ . $\newline$ Here, $Length = 6$ feet, $Height = 4$ feet, and $Volume = 72$ cubic feet. $\newline$ We need to find the $Width$ .
Rearrange Formula: Rearrange the formula to solve for Width. $\newline$ $Width = \frac{Volume}{Length \times Height}$ $\newline$ $Width = \frac{72}{6 \times 4}$
Perform Calculation: Perform the calculation to find the Width. $\newline$ Width = $72 \div 24$ $\newline$ Width = $3$ feet

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