SOLUTION: if you have recieved grades of 90, 85, and 97, what do you need to get an average of at least a 92?

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Question 999362: if you have recieved grades of 90, 85, and 97, what do you need to get an average of at least a 92?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
What you are asking is to solve
+%2890%2B85%2B97%2Bx%29%2F4+%3E=+92
Multiply by four and add the numbers and get
272 + x >= 368
Subtract 272 and get
x >= 96