SOLUTION: An aerobics instructor burns 3,000 calories per day for 4 days. How many calories must she burn during the next day so that the average (arithmetic mean) number of calories burned

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Question 259205: An aerobics instructor burns 3,000 calories per day for 4 days. How many calories must she burn during the next day so that the average (arithmetic mean) number of calories burned for the 5 days is 3,500 calories per day?

(A) 6,000 (B) 5,500 (C) 5,000 (D) 4,500 (E) 4,000

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=+3500=%284%283000%29%2BX%29%2F5
17500=12000%2BX
X=5500
B is the correct answer.