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JMaczko Group Title

Lamar runs 7 miles in 50 minutes. At the same rate, how many miles would he run in 15 minutes

  • one year ago
  • one year ago

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  1. amistre64 Group Title
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    50, times what, equals 15?

    • one year ago
  2. JMaczko Group Title
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    takes her 50 min to run 7 miles, at that same rate how many miles will she run in 15 min

    • one year ago
  3. amistre64 Group Title
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    ... doesnt really answer my question tho. you have the ratio; 7miles:50minutes, dividing both sides by 50 gives us 7/50 miles: 1 minute

    • one year ago
  4. xoya Group Title
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    |dw:1370890413384:dw| 50x=7x15 x=7x15/50 x=2.1 I hope I'm right :)

    • one year ago
  5. mathstudent55 Group Title
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    This can be solved with a proportion. |dw:1370890515540:dw|

    • one year ago
  6. texaschic101 Group Title
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    proportion time... 7/50 = x/15 --7 miles to 50 min = x miles to 15 min now cross multiply 50x = (7)(15) 50x = 105 x = 105/50 x = 2.1 check.. 7/50 = 2.1/15 (7)(15) = (2.1)(50) 105 = 105 (correct)

    • one year ago
  7. mathstudent55 Group Title
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    50x = 7*15 50x = 105 x = 105/50 x = 2.1 Answer: 2.1 miles

    • one year ago
  8. xoya Group Title
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    I was right :)

    • one year ago
  9. texaschic101 Group Title
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    yes you were :)

    • one year ago
  10. xoya Group Title
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    xD

    • one year ago
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