SOLUTION: John scores a 97% on test A. He scores an 82% on test B. Test A makes up 70% of his final score. Test B makes up 30%. What is Johns final percentage.

Algebra ->  Test  -> Lessons -> SOLUTION: John scores a 97% on test A. He scores an 82% on test B. Test A makes up 70% of his final score. Test B makes up 30%. What is Johns final percentage.      Log On


   



Question 583327: John scores a 97% on test A. He scores an 82% on test B. Test A makes up 70% of his final score. Test B makes up 30%. What is Johns final percentage.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
John scores a 97% on test A. He scores an 82% on test B.
Test A makes up 70% of his final score.
Test B makes up 30%. What is Johns final percentage.
:
We can solve it as if there were 10 tests, this will give the relationship between the two tests that we want.
:
Av = %287%2897%29+%2B+3%2882%29%29%2F10
Av = %28679+%2B+246%29%2F10
Av = 925%2F10
Av = 92.5%