SOLUTION: Angela had 4 tests in math and her scores were: 65, 70, 80, 95. What score must she get on the fifth test to have an average of 80?
Algebra.Com
Question 906367: Angela had 4 tests in math and her scores were: 65, 70, 80, 95. What score must she get on the fifth test to have an average of 80?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Here's a hint: If you want to have an average of 
for 
tests, then the sum of all your scores must be 
. So multiply 5 times 80, then subtract the total of the 4 scores you know from the product.
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
Claire has received scores of 85, 88, 87, and 80 on her algebra tests. What is the... (answered by josmiceli)
In math, Eve had test scores of 84, 82, 98, 85, and 95. What score must she get on the... (answered by richwmiller)
Jeannie's scores on her first four tests were 80, 65, 87,and 75. What will she have to... (answered by tutor_paul)
Angela's average for six math tests is 86. On her first tests she had scores of 80, 88,... (answered by Earlsdon)
Heather has had four algebra tests so far this year. Her scores are: 90%, 87%, 96%, and... (answered by ewatrrr)
Angela’s average for six math tests is 87. On her first four tests she had scores of (answered by ikleyn,mananth,greenestamps)
Claire has received scores of 85,88,87,and 75 on her algebra tests. What is the minimum... (answered by richard1234)
Molly has received scores of 85, 88, 87, and 90 on her algebra tests. What is the minimum (answered by Alan3354)
