SOLUTION: If Christina Makes a 80, 84, and 72 on her report card, what grade must she make on her last quarter to make an 85 average?

Question 437898: If Christina Makes a 80, 84, and 72 on her report card, what grade must she make on her last quarter to make an 85 average?
Found 2 solutions by josmiceli, jorel1380:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the grade she needs

Looks like she can't do it unless she gets a 104
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
80+84+72+x/4=85
236+x=340
x=340-236
x=104.
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