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anonymous

  • 4 years ago

myininaya? The slope of a railway is expressed as a percent and is called the grade of the road. At the Royal Gorge, in Colorado, an inclined railway takes visitors down to the arkansas river. If the grade is 175% and the vertical drop of the railway is 1015 feet, what is the horizontal change of the railway?

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  1. myininaya
    • 4 years ago
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    ok so slope is rise/run \[1.75=\frac{rise}{run}=\frac{1015}{run}\]

  2. myininaya
    • 4 years ago
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    We need to solve \[1.75=\frac{1015}{run}\] for run

  3. myininaya
    • 4 years ago
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    run is the horizontal change

  4. anonymous
    • 4 years ago
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    okay and then?

  5. anonymous
    • 4 years ago
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    is that all??

  6. myininaya
    • 4 years ago
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    \[1.75 run=1015\]

  7. myininaya
    • 4 years ago
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    yes just divide both sides by 1.75

  8. anonymous
    • 4 years ago
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    and that's the answer??

  9. myininaya
    • 4 years ago
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    whatever 1015/1.75 is yes

  10. anonymous
    • 4 years ago
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    105?

  11. anonymous
    • 4 years ago
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    that is the horizontal change?

  12. myininaya
    • 4 years ago
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    yes

  13. myininaya
    • 4 years ago
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    i get 580

  14. myininaya
    • 4 years ago
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    1015/1.75 is what i did

  15. anonymous
    • 4 years ago
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    ohh careless mistake. Thank you!~

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