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    1. Welcome to the forum
    2. Daily Challenge Course Discussion
    3. M1 Algebra Basics
    4. Week 4
    5. Day 15
    6. Module 1 Day 15 Your Turn Part 4
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    • E

      desire for explanation for the intuition of D-1

      • • extraordinarychipmunk
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    • victorioussheepV

      The formula A/B-A

      • • victorioussheep
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      F

      @quacker88 Hi! Thanks for the helpful explanation because I had the same question victorioussheep did. It's just when I tried to solve the problem you gave, I got the answer B/(B-A).

      (1/A-1/B)t=1 Simplifying (1/A-1/B), I get (B-A/AB)t=1 and so t= AB/B-A. t is the time it takes for the first runner to catch up with the second runner. So the number of laps the first runner runs is AB/B-A divided by A which is B/B-A.

      Also, I think how Prof. Loh got A/A-B was by solving for the number of laps the trainer or the second runner was running.

      I don't know if this is correct, but I hope you can look over my work. Thanks!

    • S

      New method for Your Turn in Module:1 Day:14

      • • studiouszebra
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      @quacker88 Thank you very much sir/mam , for checking my answer 😀. No sir/mam I didn't learn relative speeds from modules.

    • S

      Use Relative Velocity to find time and number of laps

      • • studiouszebra
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