SOLUTION: If I have a grade of 87% worth 50% of my grade, a grade of 83.33 worth 25% of my grade and a grade of 95% worth 15% of my grade and quizzes are worth 10%. My total grade is 87. 31

Algebra ->  Average -> SOLUTION: If I have a grade of 87% worth 50% of my grade, a grade of 83.33 worth 25% of my grade and a grade of 95% worth 15% of my grade and quizzes are worth 10%. My total grade is 87. 31      Log On


   



Question 839293: If I have a grade of 87% worth 50% of my grade, a grade of 83.33 worth 25% of my grade and a grade of 95% worth 15% of my grade and quizzes are worth 10%. My total grade is 87. 31%, what do I need to get at least 95%?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If I have a grade of 87% worth 50% of my grade, a grade of 83.33 worth 25% of my grade and a grade of 95% worth 15% of my grade and quizzes are worth 10%. My total grade is 87. 31%, what do I need to get at least 95%?
:
90% or 9/10th of the grade = 87.31
let x = av grade on the quizzes, the remaining tenth of your grade
:
%28%289%2887.31%29%2Bx%29%29%2F10 = 95
multiply both sides by 10
785.79 + x = 950
x = 950 - 785.79
x = 164.21, which is more than 100%, there is no way you can raise it to 95%