SOLUTION: your test grades are 90, 92, 80 and 83. determine what score you must get on your next test to have an average of an 88 in the course.

Algebra ->  Average -> SOLUTION: your test grades are 90, 92, 80 and 83. determine what score you must get on your next test to have an average of an 88 in the course.      Log On


   

Question 914379: your test grades are 90, 92, 80 and 83. determine what score you must get on your next test to have an average of an 88 in the course.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

%2890%2B+92%2B+80%2B83%2Bx%29%2F5=88
%28345%2Bx%29=88%2A5
345%2Bx=440
x=440-345
x=95......you must get on your next test

check:
%2890%2B+92%2B+80%2B83%2Bx%29%2F5=88
%2890%2B+92%2B+80%2B83%2B95%29%2F5=88
440%2F5=88
88=88