SOLUTION: Your test scores in Algebra so far are 73, 89, 65, and 91. If yo want to average at least an 82, what score do you need on your next test?

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Question 547165: Your test scores in Algebra so far are 73, 89, 65, and 91. If yo want to average at least an 82, what score do you need on your next test?
Answer by mathie123(224) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming that each test is worth the same, and letting x be the mark on the next test, we have:
%2873%2B89%2B65%2B91%2Bx%29%2F%285%29=82
%28318%2Bx%29%2F%285%29=82
318%2Bx=410
x=410-318
x=92
This means that you would need a 92% on your next test.