SOLUTION: Laura wants to get an A in her math class. To earn an A in the course, she must average a score of 90 on the 5 exams. Laura has taken 4 exams and averaged 87.75 points on them.

Question 668681: Laura wants to get an A in her math class. To earn an A in the course, she must average a score of 90 on the 5 exams. Laura has taken 4 exams and averaged 87.75 points on them. How many points does she need to score on the fifth exam to earn an A in the course?
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!
4 * 87.75 = 351 total points so far.
In order to get a 90 she must get 5*90 = 450 points total.
So she must get 450-351 = 99 on the last test.
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