Answer:
Julius needs 2124 calories to exercise 30 minutes per day, 6 days a week.
Explanation:
Given that He burns calories at a rate of 708 calories per hour.
[tex]r=708\text{ cal/hr}[/tex]The number of calories he need to excercise 30 minutes per day, 6 days a week is;
[tex]\text{time t = 30 min/day }\times\text{ 6 days/wk}=180\text{ minutes/wk = 3 hours/wk }[/tex]The amount of calories can be calculated as;
[tex]\begin{gathered} A=\text{rate}\times time \\ A=708\text{ cal/hr }\times3\text{ hours/wk} \\ A=2124\text{ calories/wk} \end{gathered}[/tex]Therefore, Julius needs 2124 calories to exercise 30 minutes per day, 6 days a week.