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23 November, 01:25

If a road has a 4% grade and rises 200 feet, what is the run?

5

8

5000

8000

+5
Answers (1)
  1. 23 November, 02:40
    0
    5000

    Step-by-step explanation:

    According to Wikipedia, the percent measureof a road grade is 100 times rise over run. in your case you know everything but run, so let's set up an equation

    4=100 * 200 / run

    Now just use algebra

    4 = 20000 / run

    run * 4 = 20000

    run = 20000/4

    run = 5000

    let me know if you didn't understand anything.
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