SOLUTION: if i have a 80 in my class, and i take a test that is 40% of my grade, what is the lowest grrade i can make to obtain a 75?

SOLUTION: if i have a 80 in my class, and i take a test that is 40% of my grade, what is the lowest grrade i can make to obtain a 75?

Algebra.Com

Question 477574: if i have a 80 in my class, and i take a test that is 40% of my grade, what is the lowest grrade i can make to obtain a 75?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
80x.6=48
75-48=27
.4p=27
p=27/.4=67.5
The lowest grade you can get on the last test and preserve a 75 average is 67.5%..
RELATED QUESTIONS
I have a 81.17% in my class and i need a 78% to pass the class. what is the lowest grade... (answered by richard1234)

I have a 94 on class grade worth 60% of my grade. Final is worth 40%.what is the lowest I (answered by ewatrrr)

My grade in a certain math class is determined by three tests. My highest test score will (answered by richwmiller,solver91311)

if my grade is a 77.20 and i have to take a final that is worth 30% of my grade what is... (answered by Alan3354)

my overall class grade is a 75. My final exam is 1/3 of my grade. there were a total of... (answered by edjones)

My grade in a certain math class is determined three tests. My highest test score will... (answered by Boreal)

If I have a 57% in my class and it counts for 80% of my grade, what's the lowest grade I... (answered by stanbon)

If I earned a 64% on a test (16/25 questions) and the test is worth 10% of my grade, and... (answered by TimothyLamb)

If I have a 57% in my class and it counts for 80% of my grade, what's the lowest grade I... (answered by Alan3354)