Question

Bob's bathtub is 5.0 ft long and 2.2 ft wide. Bob fills the tub to a depth of 0.8 ft. A cubic foot of water is about 7.48 gallons. How many gallons are used to fill the tub?

Answer 1

65.824 gallons

Step-by-step explanation:

First, we determine the volume of water in the bathtub in cubic feet.

`\begin{gathered} \text{Volume}=5.0*2.2*0.8 \\ =8.8ft^3 \end{gathered}`

Given:

`1ft^3\text{ of water=}7.48\; gallons.`

Thus, we have that:

`\begin{gathered} 8.8\; ft^3\text{ of water=}7.48*8.8 \\ =65.824\text{ gallons} \end{gathered}`

65.824 gallons of water were used to fill the tub.