Alvin weighed 180 pounds at the beginning of the semester. After eating healthy foods and exercising regularly for six weeks, he lost 16 pounds. Which expression should he use to determine his average rate of weight loss per week?
To determine his average rate of weight loss per week, Alvin should divide the total weight loss by the number of weeks.
The expression for his average rate of weight loss per week is:
16 pounds / 6 weeks
To determine Alvin's average rate of weight loss per week, you need to divide the total weight loss by the number of weeks. In this case, Alvin lost 16 pounds over 6 weeks.
So, to find the average rate of weight loss per week, the expression Alvin should use is:
16 pounds / 6 weeks
Simplifying the expression gives:
2.67 pounds per week (rounded to two decimal places)
Therefore, Alvin's average rate of weight loss per week is approximately 2.67 pounds.