+0  
 
-2
146
1
avatar+-291 

In Heidi's history class, the only grades that count toward the semester average are the $6$ tests she has already taken and the upcoming final exam. The final exam counts as two tests. Heidi has determined that if she earns $99$ points on the final she will have exactly a $90$-point average for the semester. On average, how many points has Heidi scored on each test prior to the final exam?

 Mar 28, 2020
 #1
avatar+4569 
0

87 points

 

Try to find the total number of points and the average.

 Mar 28, 2020

26 Online Users

avatar
avatar
avatar
avatar