SOLUTION: Jackie has completed 7 problems and is working at a rate of 4 problems per hour. Brandon has completed 15 problems and is working at the rate of 2 problems per hour. After how many

Question 1042336: Jackie has completed 7 problems and is working at a rate of 4 problems per hour. Brandon has completed 15 problems and is working at the rate of 2 problems per hour. After how many hours will jackie and Brandon have the same amount of problems done? At that time, how many problems will they each have completed?
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Let n be the number of hours worked. Then:
7+4n=15+2n
2n=8
n=4
After 4 hours, they will have both completed 23 problems. ☺☺☺☺
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