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

Answer:

65.824 gallons

Explanation:

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

$\begin{gathered} \text{Volume}=5.0\times2.2\times0.8 \\ =8.8ft^3 \end{gathered}$

Given:

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

Thus, we have that:

$\begin{gathered} 8.8\; ft^3\text{ of water=}7.48\times8.8 \\ =65.824\text{ gallons} \end{gathered}$

65.824 gallons of water were used to fill the tub.