SOLUTION: Vanessa's average score on 3 tests is 78. What is the least that she can score on her fourth test so that her average will be at least 81?

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Question 1055359: Vanessa's average score on 3 tests is 78. What is the least that she can score on her fourth test so that her average will be at least 81?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
So her total test scores are,
T%2F3=78
T=234
Adding the fourth score would make it,
234%2BF
So,
%28234%2BF%29%2F4%3E=81
234%2BF%3E=324
F%3E=324-234
F%3E=90