SOLUTION: John received three grades of 85, 92, and 100 on his first three tests. What must he get on his fourth test to get a 90 average?
Algebra.Com
Question 894526: John received three grades of 85, 92, and 100 on his first three tests. What must he get on his fourth test to get a 90 average?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
John received three grades of 85, 92, and 100 on his first three tests. What must he get on his fourth test to get a 90 average?
------------
He has 85+92+100 = 277 "points"
4*90 = 360
360 - 277 = 83
RELATED QUESTIONS
Jason has grades of 89 and 87 .what grades must he earn on his next test to get an... (answered by macston)
John recieved three tests. His scores were 90,95 and 92. What does he need to get on his... (answered by rfer)
You are taking a course that has four tests. The first three tests are worth 100 points... (answered by FrankM)
You are taking a course that has four tests. The first three tests are worth 100 points... (answered by solver91311)
You are taking a course that has four tests. The first three tests are 100 points each... (answered by solver91311)
Mark took three tests. His grades were 74, 81 and 70. what grade must he get on the... (answered by rfer)
Thad has scores of 87, 83, and 80 on his first three algebra tests. What score must he... (answered by jim_thompson5910)
Ken received grades of 90,88,and 75 on three tests. What grade must he receive on the... (answered by checkley79)
a student received grades of 79, 90 and 83 on the three math tests. what grade does the... (answered by Alan3354)