SOLUTION: Jessica wants to earn at least a B this grading period, which is an average of an 85. So far Jessica has earned a 90, 75, and 88 on three tests. What is the least grade she can sco

Algebra ->  Average -> SOLUTION: Jessica wants to earn at least a B this grading period, which is an average of an 85. So far Jessica has earned a 90, 75, and 88 on three tests. What is the least grade she can sco      Log On


   

Question 1166734: Jessica wants to earn at least a B this grading period, which is an average of an 85. So far Jessica has earned a 90, 75, and 88 on three tests. What is the least grade she can score on the fourth test to reach her goal? *
Answer by ikleyn(52790) About Me  (Show Source):
You can put this solution on YOUR website!
.

To answer the question, you should solve this inequality


    %2890%2B75%2B88+%2B+x%29%2F4 > = 85.


To solve it, start multiplying both sides by 4.


The rest is obvious.

You are instructed and directed.

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