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11 February, 09:33

Most staircases in use today have 9-inch treads and 8 1 2 - inch risers. What is the slope of a staircase with these measurements? Give your answer as a fraction or rounded to four decimal places, if necessary

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  1. 11 February, 09:49
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    Rise over run

    8 1/2:9 equals. 9444
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