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anonymous

  • one year ago

HELP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE!!! Clyde drove 30 miles in 20 minutes and then drove an additional 10 miles in 10 minutes. What is the average speed for the entire trip?

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  1. Astrophysics
    • one year ago
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    \[S_{avg} = \frac{ Total~Distance }{ Total~ time }\]

  2. anonymous
    • one year ago
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    i know that but the average I'm having trouble with

  3. Astrophysics
    • one year ago
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    All you have to do is plug in the values at this point.

  4. anonymous
    • one year ago
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    you're really unhelpful

  5. Astrophysics
    • one year ago
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    K, well what is the total distance?

  6. anonymous
    • one year ago
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    40

  7. Astrophysics
    • one year ago
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    Good, and total time?

  8. Astrophysics
    • one year ago
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    By the way, do they want your answer in miles/ minutes or what?

  9. anonymous
    • one year ago
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    miles

  10. anonymous
    • one year ago
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    30 minutes

  11. Astrophysics
    • one year ago
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    Good, but speed is measured with two quantities, hence the formula distance/ time, so I assume they want it in miles/ minutes, so just divide it now.

  12. anonymous
    • one year ago
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    75 miles an hour

  13. Valpey
    • one year ago
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    Total distance, as you have assessed, is 40 miles. The total time is 20 min + 10 min = 30 min. So that can be said to be 40 miles per 30 minutes. But we probably want to state speed in terms of miles per hour. If you can go 40 miles in half an hour how many miles would you go in a whole hour?

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