SOLUTION: aura took three biology exam and has an average score of 88. her second exam was ten points better than her first, and her third exam was four points better than her second exam. w
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Question 330550: aura took three biology exam and has an average score of 88. her second exam was ten points better than her first, and her third exam was four points better than her second exam. what were her three exam scores ? Answer by solver91311(24713) (Show Source):
Remember how you calculate an average. You add the numbers and divide by the number of numbers. So if the average of 3 scores was 88, then the sum of the three scores must be 3 times 88 or 264.
Let represent the score on the first test. Then the score on the second test must be , and the score on the third test must be .
Add 'em up:
Solve for , then add 10 and then add 4 more.
John
My calculator said it, I believe it, that settles it
