A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Randy and Sandy are 500 km apart. Randy starts driving towards Sandy at 1:00 and maintains a speed of 90 km/h. Sandy starts driving towards Randy at 2:00 and maintains a speed of 105km/h. How far has Randy traveled when they meet?

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think i need to find the time each has traveled....?

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    to then determine the distance...since i already have the rate at which each was traveling

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    just not sure how to do that

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sandy's time is 1 less than randys time

  5. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    randy is an hour ahead and has cut off 90 km of his distance

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    right

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so sandy can be represented as t-1

  8. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so start them heading towards each other at a distanceof 500-90

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok they are heading towards each other at a distance of 410

  10. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yay!! how much time do they travel combined in 1 hour?

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    195

  12. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    195 km right...good now how many hours is that till they are almost together?

  13. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    410/195

  14. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    2

  15. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    after 2 hours how much distance is left?

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    2.1 to be exact

  17. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    20 km

  18. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    at a combined spped of 195km per hour, how long does it take them to cover 20 km?

  19. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    195/20

  20. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    other way around?

  21. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    .10

  22. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    and 1/10 of an hour is..... 6 minutes right?

  23. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    correct

  24. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    lets make sure this last bit is right....let me go over it...

  25. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait, if it takes them both 2.1 hours to travel the distance

  26. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so add an hour to that and use it to calclate randys distance

  27. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    nevermind i think thats wrong

  28. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    they meet up at the same point :) when they meet, the distance is traveled

  29. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    if 410 km is traveled combined in 2.1 hours

  30. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do I then make an equation of 2.1= t + (t-1)

  31. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes, when they started together they had a distance of 410 km to cover together, they meet after "so much time" passes".

  32. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    90t =-105t right? maybe not...but it looks good

  33. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im confused now

  34. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    195t - 410 = 0 is what we want I think

  35. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i feel like im making this more complicated than it is

  36. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    at 195 km/hour and at "t" hours they cover 410 miles, so the distance is 0 195t-410 = 0

  37. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    t = 410/195

  38. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but thats t for both of them

  39. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Randy has traveled for an extra hour so 90(t+1) = distance traveled by randy

  40. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wow i feel stupid

  41. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    haha

  42. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    lol :)

  43. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you really are superhero lol

  44. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    279.23 km ;) I wanted was hoping for a cool title like "turkey club on rye" but nooooooo.....

  45. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i got the answer. HAHAHA

  46. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.