Asked by help pleaseee

mr. Rodriguez, a college instructor, can grade his class papers in 3 hours while it takes his assistant 4 1/2 hours.  If Mr. Rodriguez graded the papers for 1 hour and then left the job for his assistant to complete, how long will it take his assistant to finish grading papers?
Answered by Damon
R did 1/3 of the job

So A has to do 2/3 of the job

(2/3) (4 1/2) = (2/3)(9/2) = 3 hours

Answered by Christos
1/3+2/9x=1
2/9x=2/3
x=3 hours
Answered by Conscious
What Damon said
Answered by Damon
R did 1/3 of the job

So A has to do 2/3 of the job

(2/3) (4 1/2) = (2/3)(9/2) = 3 hours
Answered by hi
3 and ya i take russian math it sucks
Answered by cute pie
rsm is trash
Answered by Someone who just burnt "cute pie"
In that case, that's where you belong, in the trash. Maybe there you can learn some manners, courtesy, and possibly become good at math like me and "hi".
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