Answer:
The tree is 45 meters high.
Step-by-step explanation:
Drawing this out will make it much easier.
In the figure, 3 is proportional to 27, and 5 is proportional to the missing side (x).
Insert the figures into an equation and solve:
3/5 * 27/x
Cross multiply:
3(x)= 27(5)
3x=135
135/3=x
x=45
let X = speed of slow bicycle rider
2x=speed of fast bicycle rider
3(x+2x)=72
X=8mph(slowest bicycle rider)
2x=16mph(fastest bicycle rider)
13 x 15 = 195
340
