L Lauren L New member Jun 10, 2009 #1 need to get on the exam....? i have a 74.6%. my exam is worth 30% and i want to finish the course with a 70%, what percent do i have to get on the exam? please help.. im not the greatest with math.
need to get on the exam....? i have a 74.6%. my exam is worth 30% and i want to finish the course with a 70%, what percent do i have to get on the exam? please help.. im not the greatest with math.
A A-Train New member Jun 10, 2009 #2 You need to get a 59.3% or higher to finish with a 70% You just do this: .746*.70 + x*.30 = 0.70 and solve for x to get: x = [0.70 - (.746*.70)] / .30 x = 0.5926666 or 59.2% to get exactly a 70%
You need to get a 59.3% or higher to finish with a 70% You just do this: .746*.70 + x*.30 = 0.70 and solve for x to get: x = [0.70 - (.746*.70)] / .30 x = 0.5926666 or 59.2% to get exactly a 70%
