Write the rate that is given in the table as a fraction, then find an equivalent rate with 135 in the numerator.
7
Practice makes perfect
We want to find the number of hours n it takes to travel 135 miles.
Miles
45
135
Hours
4
n
We can see in the table that it takes 4 hours to travel 45 miles. Let's write this rate as a fraction. Then we can multiply both terms of the rate by the same number to find an equivalent rate with 135 in the numerator, and in that way find n.
45miles/4hours=135miles/nhours [3mm]
45miles* 3/4hours* 3=135miles/7hours
It takes 7 hours to drive 135 miles. Therefore n must be 7.
