Posted by **chris** on Tuesday, December 7, 2010 at 5:17pm.

The natural stride up a certain staircase has a slope of 3/5, meaning that a run of 5 inches has a rise of 3 inches.

The model for a standard staircase is y=(3/5)x

Find the rise for a staircase constructed at a mansion which has a run of 12 inches.

Not sure how to set equation up

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