The distance the ramp has to extend from the home in order to comply with the needed slope is; 30 ft
Slope of a ramp
We are told that the slope of the wheelchair ramp has to be 1/12.
Now, formula for slope is;
m = change in vertical height/change in horizontal height.
Now, vertical distance is given as 2.5 ft. Thus, to comply with the given slope, it means that;
1/12 = 2.5/x
Cross multiply to get;
x = 2.5 × 12
x = 30 ft.
Read more about slope of a ramp at; https://brainly.com/question/2391738
