SOLUTION: Kathy has a 90 average on her first four tests. What does Kathy need to score on the next test to have exactly a 92 average for the five tests?
Algebra.Com
Question 572777: Kathy has a 90 average on her first four tests. What does Kathy need to score on the next test to have exactly a 92 average for the five tests?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Kathy has a 90 average on her first four tests. What does Kathy need to score on the next test to have exactly a 92 average for the five tests?
-------
(4*90+x)/5 = 92
360 + x = 460
x = 100
=======================
Cheers,
Stan H.
RELATED QUESTIONS
Kathy has test scores of 88, 90, 91, and 78. What must she score on her next test to have (answered by lynnlo)
score of 88, 92, 85, and 87 on four tests. what score must you get on the fifth test to... (answered by Fombitz)
After three tests, Amanda's average score was 88. What score must she earn on her next... (answered by ewatrrr)
To earn an A in a course, a student must get an average score of 90 on five
tests. If... (answered by math_helper,greenestamps)
Pam scored 71, 61, 90 and 60 on four previous tests. What score does she need to make on (answered by MathLover1)
Paula needs to have an average of 90 to keep her rank in the roll. If she scored 86, 92,... (answered by jorel1380)
On the first 5 tests of her chemistry class, Emily got an average score of 88.
What... (answered by rfer)
Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the... (answered by solver91311)
how to write linear inequality for- On her last two math tests, Leah had scores of 83 and (answered by MathLover1)