One way to solve this problem is by using a proportion. Cross multiply and solve for x.
20/15 = x/1
15x = 20
x = 20/15
x = 1.333 miles per minute
Are you sure your problem has used the right figures? Typical bike-riding speed is about 15 miles per hour or 1/4 mile per minute.
Lin ride her bike 20 miles in 15 minutes. If she rode at constant speed what is the unit rate and how do you know ?
1 answer