SOLUTION: I have 91 in my class and my final exam is worth 10% of my grade. How low can I score and still have an A

Question 934388: I have 91 in my class and my final exam is worth 10% of my grade. How low can I score and still have an A
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
assume an A is for the range 90% to 100% inclusive:
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(1 - 0.10)*91 + 0.10x = 1.00*90
(0.90)*91 + 0.10x = 90
0.10x = 90 - (0.90)*91
x = (90 - (0.90)*91)/0.10
x = 81
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answer:
you need 81 or higher on the final
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