Question

Pablo plans to both run and swim. let r be the number of laps he runs and let s be the number of laps he swims. each lap he runs takes him 5 minutes, and each lap he swims takes him 2 minutes. he wants to exercise for at least 45 minutes today write an inequality

Answer 1

5r=time he runs
2s=time he swims

total must be at least 45

5r+2s≥45