SOLUTION: Pam scored 71, 61, 90 and 60 on four previous tests. What score does she need to make on her next test so that her average is 72?

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Question 937743: Pam scored 71, 61, 90 and 60 on four previous tests. What score does she need to make on her next test so that her average is 72?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

%2871%2B61%2B90%2B+60%2Bx%29%2F5=72
%28282%2Bx%29%2F5=72
282%2Bx=72%2A5
282%2Bx=360
x=360-282
x=78
she need to make 78 on her next test so that her average is 72