If you build a skateboard ramp whose ratio of height to base must be 2:3, what is the base if the height is 5m?

2 answers

The height goes with the 2, and the base goes with 3.

Ratios can also be written as fractions. Just set up a simple equation and solve.
2/3 = 5/b
Cross multiply. 2*b=5*3
2b=15.
Divide by 2 to isolate b.
b=15/2 or 7.5m
If you build a skateboard ramp whose ratio of height to base must be 2:3, what is the base if the height is 5m?