SOLUTION: I have a 64 average what grade do I need to get a 70 average

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Question 689276: I have a 64 average what grade do I need to get a 70 average
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
How many tests are part of the 64 average? You need to know that before you can solve.

In general the formula will be
%2864+%2A+y%29+%2B+x+=+70%2A%28y%2B1%29 where y is the number of tests that resulted in an average of 64. And x is the next score you need in order to average 70
So if you have taken one test and received a 64, then you will solve for the next score as follows
64+%2B+x+=+70+%2A+2
x+=+140+-+64
x+=+76