SOLUTION: Sam must have an average of 70 or more in his summer course obtain a grade of C. His first three grades were 75, 63, and 68. Write an inequality representing the score that Sam mus

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Question 78089: Sam must have an average of 70 or more in his summer course obtain a grade of C. His first three 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 stanbon(48563) About Me  (Show Source):
You can put this solution on YOUR website!
Sam must have an average of 70 or more in his summer course obtain a grade of C. His first three 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.
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Let his score on the last test be "x".
INEQUALITY:
(75+63+68+x)/4 >=70
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cheers,
Stan H.