Hadley works at a fitness center. She decides to collect data relating the number of hours different people who use the fitness center exercise per week to the number of calories each person burns. The scatter plot shows the data she gathers and the line of best fit. Using technology, she finds that the equation of the line of best fit is y = 220x. When she signs a new fitness center member up, he says that his goal is to burn 880 calories each week. Using her data, how many hours of exercise should Hadley recommend for him? A. 5 hours B. 6 hours C. 4 hours D. 3 hours

Question

Camilla

Mathematics

24 April, 21:18

Hadley works at a fitness center. She decides to collect data relating the number of hours different people who use the fitness center exercise per week to the number of calories each person burns. The scatter plot shows the data she gathers and the line of best fit. Using technology, she finds that the equation of the line of best fit is y = 220x. When she signs a new fitness center member up, he says that his goal is to burn 880 calories each week. Using her data, how many hours of exercise should Hadley recommend for him? A. 5 hours B. 6 hours C. 4 hours D. 3 hours

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Answers (1)

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Jenny Eaton · Answer 1

4 hours.

Step-by-step explanation:

The equation which shows the relation between the number of hours (x) a fitness center member works at the center per week and the number of calories (y) he burns per week is y = 220x.

Now, A new fitness center member wants to burn 880 calories each week.

Therefore, the number of hours he should exercise in the center per week will be given by 880 = 220x, ⇒ x = 4 hours (Answer)