Question

at volleyball practice, coach smith always sets aside 80% of the total time for game - play. at practice yesterday, players spent 72 minutes playing games. what was yesterdays total practice time? hint: you can click on the plus signs to add columns for equivalent ratios. minutes playing games (part) 80 72 total practice time in minutes (whole) 100

Explanation:

Step1: Set up proportion

Let $x$ = total practice time.
$$\frac{80}{100} = \frac{72}{x}$$

Step2: Cross-multiply to solve for $x$

$$80x = 72 \times 100$$
$$80x = 7200$$

Step3: Isolate $x$

$$x = \frac{7200}{80}$$

Answer:

90 minutes