A weight-loss counselor has prepared a program of diet and exercise for a client that gives the following expected weight loss (in pounds per week), where c is the average daily calorie intake and n is the number of 40-minute aerobic workouts per week.

Weight loss =f(n,c)= 1/10 n^2 - 1/5 c + 1211/5

a. How many pounds can the client expect to lose by eating an average of

1175 calories per day and participating in four 40-minute workouts in a week? The client can expect to lose ( blank ) pounds in a week.

(Simplify your answer.)

b. Find and interpret

f/n.

c. The client currently averages 1300 cal per day and does

four 40-minute workouts each week. What would be the approximate impact on weekly weight loss of adding a fifth workout per week?

By adding a fifth 40-minute workout per week, the client could expect to lose an additional (blank) pounds