Hello :
let A and B two points in the first line calculate the slope : <span>: (YB - YA)/(XB -XA)
</span>let C and D two points in the second line calculate the slop (YC - YD)/(XC -XD)
you are slope
Here, we need to set up a proportion.
4.5 miles in 15 minutes.
In 75 minutes, how much miles can he ride?
4.5/15 = x/75
Cross multiply
4.5 * 75 = 337.5
15*x = 15x
15x = 337.5
15x/15 = 337.5/15
x= 22.5
Final answer:- Tommy can ride 22.5 miles in 75 minutes.