Question

Karen runs each lap in 7 minutes. She will run less than 63 minutes today. What are the possible numbers of laps she will run today? Use n for the number of laps she will run today. Write your answer as an inequality solved for n.

Answer 1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

time for each lap = 7 min

today's time run less than 63 min

n = # laps

Step 02:

1 lap ------- 7 min

n laps ------ 63 min

n laps * 7 min = 1 lap * 63 min

n laps < 63 min * lap / 7 min

n laps < 9 laps

The answer is:

She will run less than 9 laps .