Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

WebsWeWeave

  • 3 years ago

Two cars drive in the same direction along a straight road, at a constant speed - one at 70 km/hr and the other at 80 km/hr. Assuming that they start at the same point and at the same time, how much sooner would the faster car arrive at a destination 460 km away? a. 49 minutes c. 5.75 hrs b. 6.6 hrs d. 741 minutes

  • This Question is Closed
  1. soty2013
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    d. 741 minutes

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

    only if your assumption of them starting at the same point and time is correct if its wrong then we dont know....

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

    Joe is on a cross-country trip from New York to Los Angeles. He drives for 45.0 min at 70.0 km/h, 10.0 min at 95 km/h, and 30.0 min at 55.0 km/h, and he spends 20.0 min eating lunch and buying gas. What is the average speed for this part of his trip? a. 67.6 km/h c. 54.7 km/h b. 68.4 km/h d. 53.8 km/h @soty2013

  4. patdistheman
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    D.) 741 minutes is not correct.

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

    then what is it?

  6. patdistheman
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    460 / 80 = 5.75 hours 460 / 70 = 6.5714285714285714285714285714286 hours 6.5714285714285714285714285714286 - 5.75 = 0.82142857142857142857142857142857 0.82142857142857142857142857142857 * 60 = 49.285714285714285714285714285714 minutes. The answer is A.

  7. 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