SOLUTION: Sam must have an average of 70 or more in his summer course to
obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality representing the score tha
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obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality representing the score tha
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Question 33656: Sam must have an average of 70 or more in his summer course to
obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade. Answer by benni1013(206) (Show Source):
You can put this solution on YOUR website! First, find the sum of the average he needs:
70*4=280
Second, find the sum of the tests that he has done:
75+63+68=206
Finally, subtract the two in order to find the score he needs on his last test:
280-206=74
Ans: 74
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