Ask Math Questions. Get Help With Your Math Homework
Thank you for using the site. I'll be happy to help you with this problem.
The given slope of the stairs is rise / run = 7/10. Since the slope is given as a fraction, you can set up a simple proportion by equating the given slope with the desired rise over the unknown run (horizontal length).
7/10 = 2/x
where "x" is the horizontal length of the stairs.
Multiplying both sides by the common denominator 10x gives:
7x = 10(2)
7x = 20
Dividing both sides by 7 then gives:
x = 20/7 = 2.86 meters.
Rounding to the nearest meter gives a horizontal length of 3 meters.