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VladimirAG [237]
3 years ago
9

A student's grade for the four quarters are 95, 83, 91, and 85. What does the student need to earn on the final exam to have an

overall B average (85 to 92 inclusively) for the year?
Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0

Answer:

The least score the student can get is 71 to get an overall B average at the end of the year.

Step-by-step explanation:

Let the score she needs to get be = x

We now have to take the mean of all the five subjects <em>(including x)</em> and equate it to the least score she can have to get a B grade.

Let us take the least score the student needs to get a B grade to be 85

Mean of all 5 scores =

\frac{95+83+91+85+x}{5}=85

\frac{354+x}{5} =85

354+x = 425

x = 71

The least score the student can get is 71 to get an overall B average at the end of the year.

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