SOLUTION: I currently have an 86% in my spanish class. The final counts for 20%. I need to get an 78% or higher in the class. What is the lowest grade I can get on my final? Thank you!

Algebra ->  Average -> SOLUTION: I currently have an 86% in my spanish class. The final counts for 20%. I need to get an 78% or higher in the class. What is the lowest grade I can get on my final? Thank you!      Log On


   



Question 542140: I currently have an 86% in my spanish class. The final counts for 20%. I need to get an 78% or higher in the class. What is the lowest grade I can get on my final? Thank you!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I currently have an 86% in my spanish class. The final counts for 20%. I need to get an 78% or higher in the class. What is the lowest grade I can get on my final?
----
You need at least 78 points out of 100.
----
You already have 0.86*80 = 68.8 points
---
You need at least 9.2 points of the 20 points to be allocated by the Final.
Solve x*20 >= 9.2
x >= 9.2/20
x >= 0.46
----
You need at least 46% on the Final.
=================
Cheers,
Stan H.