SOLUTION: Delberts test average is 77. If the final exam counts for 30% of the grade and the test average counts for 70%. What must Delbert score on the final exam to have a term average of

SOLUTION: Delberts test average is 77. If the final exam counts for 30% of the grade and the test average counts for 70%. What must Delbert score on the final exam to have a term average of

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Question 1107300: Delberts test average is 77. If the final exam counts for 30% of the grade and the test average counts for 70%. What must Delbert score on the final exam to have a term average of 80?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
x is the score on the final needed
.30x+.70(77)=80
.30x+53.90=80
.30x=26.10
x=87 the score needed
a longer way
77
77
77
77
77
77
77
x
x
x
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800
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