SOLUTION: A class contains 8 male students and 12 female students. If the average for entire class for a certain exam is 70,and the average score of the male students in the exam is 55, what
Algebra.Com
Question 756360: A class contains 8 male students and 12 female students. If the average for entire class for a certain exam is 70,and the average score of the male students in the exam is 55, what is the average score of the female students?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A class contains 8 male students and 12 female students. If the average for entire class for a certain exam is 70,and the average score of the male students in the exam is 55, what is the average score of the female students?
---
Let "x" be the average score for female students.
----------------
Equation:
(8*55+12x)/20 = 70
------
440+12x = 1400
------
12x = 960
x = 80
===============
Cheers,
Stan H.
=================
RELATED QUESTIONS
A history class is comprised of 8 female and 5 male students. If the instructor of the... (answered by ikleyn)
A history class is comprised 8 female and male students. If the instructor of the class (answered by ikleyn,greenestamps)
A history class is comprised of 5
female and
9 male students. If the instructor of the... (answered by mccravyedwin,math_tutor2020,ikleyn,Edwin McCravy)
The average score for a class of 30 students was 75. The 20 male students in the class... (answered by ankor@dixie-net.com)
There are 12 male students and 8 female students in a class. On their final math exam,... (answered by greenestamps)
A history class is comprised of female and male students. If the instructor of the... (answered by stanbon)
A history class is comprised of 5 female and 10 male students. If the instructor of the... (answered by jim_thompson5910)
The average score for a class of 25 students was 75. If the 15 female students in the... (answered by Theo)
100 students enter a competition. The average score for the entire group is 63. The... (answered by josgarithmetic,greenestamps)