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anonymous

  • one year ago

HELP UNDERSTANDING?? **IM BAD AT MEASUREMENTS It took Xander 31 minutes to run a 5-kilometer race last weekend. If you know that 1 kilometer equals 0.621 mile, how many minutes did it take Xander to run 1 mile during the race? Round your answer to the nearest hundredth. 1.99 minutes 3.105 minutes 9.98 minutes 15.52 minutes

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  1. MichaelAlex292
    • one year ago
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    First, convert 5 km to miles

  2. anonymous
    • one year ago
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    3.10686 miles?

  3. MichaelAlex292
    • one year ago
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    Yep that's about right, now do you know how to set that to a proportion?

  4. anonymous
    • one year ago
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    ahhh 0_o proportion?

  5. MichaelAlex292
    • one year ago
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    \[\frac{ 3.10686 }{ 31 } = \frac{ 1 }{ x }\] It looks something like this

  6. MichaelAlex292
    • one year ago
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    Now solve for x

  7. anonymous
    • one year ago
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    3.10686x/31

  8. MichaelAlex292
    • one year ago
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    3.10686x = 31 Now divide both sides by 3.10686

  9. anonymous
    • one year ago
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    9.97791982902

  10. MichaelAlex292
    • one year ago
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    Yep, that's correct :)

  11. MichaelAlex292
    • one year ago
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    That's the answer

  12. anonymous
    • one year ago
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    so c? thank you!

  13. MichaelAlex292
    • one year ago
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    Yep, no problem

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