Chapter 12, Problem 8QC

To determine

To calculate:To find how many hours a person practices every week.

Answer to Problem 8QC

Aperson practices every week $4\frac{2}{3}$ hours every week

Explanation of Solution

Given information:Suppose a person practices the cello for $\frac{2}{3}$ hours every day

Calculation:

Given that a person practices the cello for $\frac{2}{3}$ hours every day

Also, there are $7$ days in a week

Thus, expression to find how many hours a person practices every week is as follows:

  $\frac{2}{3}\left(7\right)$

On solving, the product is

  $\begin{array}{l}\Rightarrow \frac{2\times 7}{3}\\ \Rightarrow \frac{14}{3}\\ \Rightarrow 4\frac{2}{3}\end{array}$

Conclusion:

Hence, a person practices every week $4\frac{2}{3}$ hours every week