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 th
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Question 95027: 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.
Found 2 solutions by checkley71, tutorcecilia:
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
(75+63+68+X)/4=70 CROSS MULTIPLY.
75+63+68+X=280
X=280-206
X=74 MINIMUM GRADE TO HAVE A 'C' AVERAGE.
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
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
=70
=70
=(70)(4)
206+x=280
x=280-206
x=74
.
Checking:
=70
=70
70=70 [checks out]
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