SOLUTION: I currently have an 86% in my spanish class. The final counts for 20%. I need to get an 78% or higher in the class. What is the lowest grade I can get on my final? Thank you!

Question 542140: I currently have an 86% in my spanish class. The final counts for 20%. I need to get an 78% or higher in the class. What is the lowest grade I can get on my final? Thank you!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I currently have an 86% in my spanish class. The final counts for 20%. I need to get an 78% or higher in the class. What is the lowest grade I can get on my final?
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You need at least 78 points out of 100.
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You already have 0.86*80 = 68.8 points
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You need at least 9.2 points of the 20 points to be allocated by the Final.
Solve x*20 >= 9.2
x >= 9.2/20
x >= 0.46
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You need at least 46% on the Final.
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Cheers,
Stan H.

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