To find out how far Brian ran in 18 minutes, we can set up a proportion based on the information given.
We know that Brian ran 5 kilometers in 40 minutes. Let's set up the proportion with the distance on the left side and the time on the right side:
5 kilometers / 40 minutes = x kilometers / 18 minutes
To find x, we can cross-multiply and solve for x:
40x = 5 * 18
40x = 90
x = 90 / 40
x = 2.25
Therefore, Brian ran 2.25 kilometers in 18 minutes.
Question
Brian ran a 5-kilometer race in 40 minutes. How far did he run in 18 minutes? Write your answer as a decimal and do not round.
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1 answer