Swimming pool 5

A rectangular inflatable swimming pool is 3 yards long, 2 5/8 yards wide, and  1 3/5 yard tall. What is the volume of the pool? Round to the nearest tenth.

Correct answer:

V =  12.6 yd³

Step-by-step explanation:

$$\begin{gathered} a=3\text{ yd } \\ b=2{\displaystyle \frac{5}{8}}=2+{\displaystyle \frac{5}{8}}={\displaystyle \frac{2\cdot 8+5}{8}}={\displaystyle \frac{21}{8}}=2.625\text{ yd } \\ c=1{\displaystyle \frac{3}{5}}=1+{\displaystyle \frac{3}{5}}={\displaystyle \frac{1\cdot 5+3}{5}}={\displaystyle \frac{8}{5}}=1.6\text{ yd } \\ V=a\cdot b\cdot c=3\cdot 2.625\cdot 1.6={\displaystyle \frac{63}{5}}{\text{yd}}^3=12\frac{3}{5}{\text{yd}}^3=12.6{\text{yd}}^3 \end{gathered}$$

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