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?

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 (including x) 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 =

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

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

homozygous. one is homozygous, while two is heterozygous.