SOLUTION: Before the final exam, a student has 5 test scores of equal weight: 72, 80, 65, 78, and 60. If the final exam counts as one-third of the final grade, what score must the student re

Question 231957: Before the final exam, a student has 5 test scores of equal weight: 72, 80, 65, 78, and 60. If the final exam counts as one-third of the final grade, what score must the student receive in order to have a final average of 76?

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Before the final exam, a student has 5 test scores of equal weight: 72, 80, 65, 78, and 60. If the final exam counts as one-third of the final grade, what score must the student receive in order to have a final average of 76?
:
Let x = final grade
:
Find the average of the 5 test scores
= 71
:
This counts as 2/3, twice as much as the final which is 1/3
:
= 76
142 + x = 3(76)
x = 228 - 142
x = 86 to have an average of 76

RELATED QUESTIONS
A Student has test scores of 72, 80, 65, 78, and 60. If the final exam counts as... (answered by Edwin McCravy)

Before the final exam, a student has test scores of 72, 80, 65, 78, and 60. If the final... (answered by ankor@dixie-net.com)

Before the final exam,, a student has test scores of 72, 80, 65, 78, and 60. If the... (answered by checkley71)

Before the final exam, a student has test scores of 72,83,65,73, and 62. If the final... (answered by Shana-D77)

Going into the final exam, which counts as two grades, Kendra has test scores of 84, 78,... (answered by ankor@dixie-net.com)

Suppose a professor counts the final exam as being equal to each of the other tests in... (answered by JulietG)

Suppose a professor counts the final exam as being equal to each of the other tests in... (answered by solver91311)

A student obtained 37% in the final exam, and has a year mark of 90%. His final mark is... (answered by edjones)

Christian has scores of 68, 65, 75, and 78 on his algebra tests. Use a compound... (answered by ewatrrr,TimothyLamb)