SOLUTION: jacqui has grades of 77 and 80 on her first two algebra test. If she wants and average of at least 77. what possible scores can she make on her third test?
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Question 330957: jacqui has grades of 77 and 80 on her first two algebra test. If she wants and average of at least 77. what possible scores can she make on her third test? Answer by solver91311(24713) (Show Source):
Remember how you calculate an average. You add up the numbers and divide by the number of numbers. In order for the average of three scores to be 77, the sum of the three scores must be 3 times 77. Subtract 77 plus 80 from 3 times 77 to get the minimum score possible for a 77 average.
John
My calculator said it, I believe it, that settles it
