SOLUTION: If I have a 75.5% in a class, and the final is worth 20% of my grade, what do I need to get in order to pass the class with a 73%.

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Question 249063: If I have a 75.5% in a class, and the final is worth 20% of my grade, what do I need to get in order to pass the class with a 73%.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If I have a 75.5% in a class, and the final is worth 20% of my grade, what do I need to get in order to pass the class with a 73%;
:
If the final is 20%, then the 75.5% is 80% of your grade then
:
Let x = final grade
:
Do it this way
%282x+%2B+8%2875.5%29%29%2F10 = 73
:
%282x+%2B+604%29%2F10 = 73
Multiply both sides by 10
2x + 604 = 730
2x = 730 - 604
2x = 126
x = 126%2F2
x = 63% will get a 73%
;
:
Check this
%282%2863%29+%2B+604%29%2F10 = 73