SOLUTION: In Algebra class, Michael has scored an 80, 79, 74, and a 87. What score does Bob need on his fifth test to obtain an average of 84? (Assume all tests are equally weighed)

Question 758128: In Algebra class, Michael has scored an 80, 79, 74, and a 87. What score does Bob need on his fifth test to obtain an average of 84? (Assume all tests are equally weighed)

Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
An average of 84 from 5 tests requires
a total of 5 x 84 = 420.
At present Michael has a total of
320 (80+79+74+87)
So, 420 - 320 = 100
Michael must score 100 to have
an average of 84 from the 5 tests.
Hope this helps.
:-)
RELATED QUESTIONS
In Algebra class, Bob has scored an 81, 83, 70, and a 86. What score does Bob need on his (answered by LearnWithMajor)

Louise scored 74%, 77% and 92% on his first algebra tests. What does he need on his 4th... (answered by MathLover1)

Tom has taken 5 of the 8 equally weighted tests in his U.S. History class this semester,... (answered by drk,stanbon)

To get a B in math, Mary must average 80 on all tests. Suppose Mary has scored 60,72,98,... (answered by nerdybill)

Claire has received scores of 85, 88, 87, and 80 on her algebra tests. What is the... (answered by josmiceli)

Here is another one 1. Brook has scored a 65, 72, 74, 84 and 94 on previous tests,... (answered by Seutip)

Allanʹs 4 quiz scores in his math class are 87, 89, 88, and 78. What score does he need... (answered by josgarithmetic,math_tutor2020,MathLover1,amoresroy,greenestamps)

Michael Scored 68,88, and 91 on three algebra Tests. What must he score on the fourth... (answered by ewatrrr)

A student in an algebra class has test scores 65, 92, 61, and 94. What score on the next... (answered by vksarvepalli)