The slope on a set of stairs is 7/10. If the stairs must rise 2.0 m, determine the horizontal length of the stairs, to the nearest tenth of a metre.
Slope on set of stairs is 7/10.the stairs must rise 2.0m find the horizontal length to nearest tenth
- Posted:
- 3+ months ago by JonasNordin
- Topics:
- horizontal, stair, math, slope, length
Details:
Responses (1)
Slope is rise over run. Run is horizontal distance, left to right. Run is always positive because we always go left to right. Rise is the vertical change in that same distance. A negative rise means it drops.
Given slope = 7/10 it rises 7 unit for each 10 units of horizontal.
7/10 = 2/x x being the horizontal measure. The rule is you can do any valid operation on both sides of an equation and it will still be equal. Multiply by x.
7x/10 = 2 Multiply by 10/7.
x = 20/7 exactly
= 2.9 m to the nearest tenth