SOLUTION: in an English class, each student's final grade is the average of the scores on n tests. If Lisa makes a 97 on the last test, her grade will be 90. If she makes a 73 on the last t
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Question 1051059: in an English class, each student's final grade is the average of the scores on n tests. If Lisa makes a 97 on the last test, her grade will be 90. If she makes a 73 on the last test, her grade will be exactly 87. What is the value of n?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
and
2.
Equate 1 and 2 and solve for n.
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