+0  
 
0
48
3
avatar+38 

A friend has a 78% average before the final exam for a course. That score includes everything but the final, which counts for 20% of the course grade.

 Sep 7, 2021
 #1
avatar+34376 
+1

Need more info.....what is the question?

 Sep 7, 2021
 #2
avatar+38 
0

A friend has a 78% average before the final exam for a course. That score includes everything but the final, which counts for 20% of the course grade.

What is the best course grade your friend can earn? ?  %

What is the minimum score your friend would need on the final to earn a 75% for the course?  ? %
 

Gue22858  Sep 7, 2021
 #3
avatar+34376 
+1

78%   represents 80% of the final  course grade

   the final exam represents 20%     the max score on the exam would be 100

 

78 (.80)    +  100 (.20)  = best final course grade

 

 

78(.80) + x (.20)  = 75       solve for 'x' to find score needed on exam to get 75 for the course

 Sep 7, 2021

22 Online Users