Question 926016: To measure the amount of fall (slope) of a concrete patio slab, a 15-foot-long 2-by-4, a 1-foot ruler, and a level were used. Find the amount of fall in the slab.
Explain what it means.
The slab has a 1-in. fall for every in. of horizontal run.
http://www.webassign.net/tgintroalgp4/3-4-070.gif
Answer by rothauserc(4718)   (Show Source):
You can put this solution on YOUR website! the slope can be expressed as a percent or an angle, since the problem does not specify, we will do percent.
the horizontal distance is 15*12 = 180" and the fall is 3" (measured by the ruler), slope = (rise / run) * 100, therefore
the slope is 3/180 * 100 = 1.666666667 percent
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