High School

The bar graph shows the number of hours you volunteered at an animal shelter each week. You wanted to work a mean of 10 hours over 7 weeks. How many hours do you need to work in the 7th week to meet your goal? Explain how you found your answer.

Hours volunteered per week: 8, 7, 6, 6, 2, 3

A. 2.5 hours
B. 5 hours
C. 10 hours
D. 15 hours
E. 20 hours

Answer :

Final answer:

To meet your goal of a mean of 10 hours, work 36 hours in the 7th week.

Explanation:

To find the number of hours you have to work in the 7th week to meet your goal of a mean of 10 hours, you need to calculate the total number of hours you have volunteered so far and subtract it from the product of 10 and 7.

From the bar graph, we can see that the number of hours volunteered in each week is 8, 7, 6, 6, 2, 2, and 3. Adding these numbers gives a total of 34 hours. Subtracting this from 70 (10 times 7) gives us 36 hours.

Therefore, you need to work 36 hours in the 7th week to meet your goal.

Learn more about Calculating mean hours of volunteering here:

https://brainly.com/question/29093819

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