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sissyedgar

  • one year ago

What is 4.6 × 10^8 cm/min in meters per hour? A. 2.76 × 10^8 m/h B. 2.76 × 10^10 m/h C. 7.67 × 10^6 m/h D. 7.67 × 10^8 m/h

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  1. sissyedgar
    • one year ago
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    @amirreza1870 @Shalante

  2. triciaal
    • one year ago
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    need 2 step conversion

  3. sissyedgar
    • one year ago
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    right, cm to meter min 2 hour

  4. triciaal
    • one year ago
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    cm to m and min to hr

  5. triciaal
    • one year ago
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    it does not matter which one you do first but pay attention to the conversion factor

  6. sissyedgar
    • one year ago
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    1 meter = 100 cm

  7. sissyedgar
    • one year ago
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    1 hour = 60 minutes

  8. triciaal
    • one year ago
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    correct

  9. triciaal
    • one year ago
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    I would do min to hr first

  10. triciaal
    • one year ago
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    remember when you multiply numbers with the same base add the exponents when you divide numbers with the same base subtract the exponents

  11. sissyedgar
    • one year ago
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    right.

  12. sissyedgar
    • one year ago
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    still dont kno wat 2 do 1st in converision! @Shalante

  13. Jack1
    • one year ago
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    4.6 × 10^8 cm/min \(\Large= \frac{4.6 × 10^8 ~cm}{1~ min} \) so first: convert from minutes to hours \(\Large= \frac{4.6 × 10^8 ~cm}{1~ min} ~ \times ~ \frac {60~mins}{1~hr}~ =~ \frac {4.6 × 10^8 × 60 ~cm}{1~hr}\) now you have an answer in cm per hour... so convert this to centimeters to meters \(\Large= \frac {4.6 × 10^8 × 60 ~cm}{1~hr} ~ \times ~ \frac {1~m}{1000~cm}~ =~ \frac {4.6 × 10^8 × 60 ~m}{1000~hrs}\) now expand it out: \(\Large= \frac {4.6 × 10^8 × 60 ~m}{1000~hrs} = \frac {27600000000~m}{1000~hrs}\) now reduce it down to scientific notation... can you do that from here?

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