SOLUTION: Sandy's average for three tests is 84. What must she earn on the next test to raise her average to 88?

Question 215199: Sandy's average for three tests is 84. What must she earn on the next test to raise her average to 88?
Answer by drj(1380) (Show Source): You can put this solution on YOUR website!
Sandy's average for three tests is 84. What must she earn on the next test to raise her average to 88?

Step 1. Let x be the next score to average 88.

Step 2. Since the average is 84 for three tests, let's just say the scores be 84 for all three tests.

Check... or which is a true statement.

Step 3. The next test score is 100 to average 88.

I hope the above steps were helpful.

For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Good luck in your studies!

Respectfully,
Dr J

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