Answer:
He should have divided 4 by
:
![shifts=(4)/((1)/(2))\\\\shifts=8](https://img.qammunity.org/2020/formulas/mathematics/high-school/mgp2ni17fdicvtb3tvzz5q2mp0jtxcht36.png)
Explanation:
You know that the students work
-hour shifts at the charity event and Zack worked in the event for four hours.
Then, to calculate the number of shifts he worked, he should not have divided
by 4. He should have divided 4 by
.
Let's make the correct procedure to calculate the number of shifts Zack worked at the charity event. This is:
![shifts=(4)/((1)/(2))\\\\shifts=8](https://img.qammunity.org/2020/formulas/mathematics/high-school/mgp2ni17fdicvtb3tvzz5q2mp0jtxcht36.png)
Therefore, he worked 8 shifts.