Problem Solving Unit Rate

Mathematics
Tutor: None Selected Time limit: 1 Day

Elijah parents told him every 4 hours of homework or reading he complete,he will be able to play 2.5 hours of video games. His friend Ishmael's parents told their son that he can play 45 minutes for every hour of home work or reading  time completes. If both boys spend the same amount of time on homework and reading this week, which boy gets more time playing video games? How do you know?

Oct 3rd, 2015

Thank you for the opportunity to help you with your question!

Elijah:

Let t_h=hours for homework

      t_d=hours for video games

      R=hours of homework/hours of video time=t_h/t_d

For Elijah: R_Elijah=4/2.5=1.6

For Ishmael R_Ishmael=60/45=1.33

so

R=t_h/t_d ------>t_d=t_h/R  ----(i)

For the same amount of homework time, Ishmael get to play more time by (i), that is R_Ishmael is smaller R_Elijah

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 16th, 2015

Thank you so much for your help!

Sep 16th, 2015

welcome

Sep 16th, 2015

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Oct 3rd, 2015
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Oct 3rd, 2015
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