Question

Tony has completed 13 problems, and Christi has completed 7 problems. Tony is completing 8 problems per hour, and Christi is completing 10 problems per hour. After how many hours will Tony and Christi have completed the same number of problems?

Answer 1

Ok, so I'm gonna work this out with you.

Answer 2

Tony already completed 13 problems and Christi already completed 7.

Answer 3

Lets say the first hour. You have to add 8 to 13 for Tony and 10 to 7 for Christi. How much do each of them have in total.

Answer 4

Tony has 21 and Christi has 17.

Answer 5

Now repeat for the second hour add 8 for Tony and 10 for Christi.

Answer 6

29 and 27

Answer 7

Then 37 and 37

Answer 8

now repeat the process

Answer 9

there you go

Answer 10

Now you know how to do that type of problem, I hope I helped.

Answer 11

Thank you so much, I don't know why that was confusing for me :)

Answer 12

You are welcome, have a good day.