Posted by Jessica on Sunday, September 30, 2007 at 8:08pm.
An instructor counts homework as 1/3 of the student's grade and the final exam to be 2/3 of the student's final grade. Going into the final exam a student has a homework grade of 48%. What range of scores on the final exam would put the student's final average between 70% and 80% inclusive if the instructor does not round off grades?
What is the range of the final exam scores?

math  bobpursley, Sunday, September 30, 2007 at 8:37pm
1/3 of 48=16 points
He wants a 80 or 70
He needs 64 to 54 more points
so he needs to get on his final exam
3/2*64 to 3/2*70 
math  Algebra 12 science, Thursday, February 21, 2013 at 8:45am
Probability