SOLUTION: A student gets an 86% on one test and 73% on the second test. What does the student need to get on the third exam to stay at a B (83%)?

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(.86+.73+x)/3=.83
:
1.59+x=2.49
:
x=.90
:
.9(100)=90% is needed

You can put this solution on YOUR website!
A student gets an 86% on one test and 73% on the second test. What does the student need to get on the third exam to stay at a B (83%)?


(86+73+x)/3>=83

(159+x)/3>=83

159+x>=83(3)

159+x>=249

x>=249-159

x>=90


Ans: Student needs 90% or better.

You can put this solution on YOUR website!
A student gets an 86% on one test and 73% on the second test. What does the student need to get on the third exam to stay at a B (83%)?
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Let 3rd exam score be x%.
Equation:
(83 + 73 + x)/3 = 83
156 + x = 249
x = 93
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The student will need 93% on the 3rd exam.
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Cheers,
Stan H.