SOLUTION: a student get a score of 72, 84, 86 what score must the student receive in the fourth test so that the mean of these scores will be 85
Algebra.Com
Question 609282: a student get a score of 72, 84, 86 what score must the student receive in the fourth test so that the mean of these scores will be 85
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
a student get a score of 72, 84, 86 what score must the student receive in the fourth test so that the mean of these scores will be 85
:
let x = 4th test score
:
= 85
multiply both sides by 5, then solve for x
RELATED QUESTIONS
a student receives test scores of 72,84,and 86.what score must the student receive on a... (answered by scott8148)
a student earned scors of 83, 78, and 77 on three of four tests. what must the student... (answered by Earlsdon)
So far in geography class, a student's quiz scores are 86%, 84%, 76%, and 72%. What score (answered by josmiceli)
So far in geography class, a student's quiz scores are 86%, 84%, 76%, and 72%. What score (answered by advanced_Learner)
A student’s test scores are 86, 72, 85, and 90. What is the lowest score that
the... (answered by edjones)
A Student has test scores of 72, 80, 65, 78, and 60. If the final exam counts as... (answered by Edwin McCravy)
Six students took a unit test and received the following scores:
Student 1 - Score 78
(answered by macston)
A student has a mean (average) score of 88 in her math class. This is the average of her... (answered by josmiceli,greenestamps)
A student has test scores of 72, 76, and 78 points. What must he score on the fourth exam (answered by addingup)