SOLUTION: A student scores 70 out of 100 on a test. If the maximum score on the next test is also 100 points, what score does the student need to maintain at least an average of 78?
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Question 616693: A student scores 70 out of 100 on a test. If the maximum score on the next test is also 100 points, what score does the student need to maintain at least an average of 78? Answer by solver91311(24713) (Show Source):
The average of a set of numbers is the sum of the numbers divided by the number of numbers. Here we will have two scores that when added together and then divided by 2 must equal 78. So when added together must be 2 times 78. So what score would you need to add to 70 so that the sum is equal to 2 times 78?
John
My calculator said it, I believe it, that settles it
