Question

Karina leaves the soccer field to drive to her house, 9 miles away, at a speed of 30 miles per hour. Her distance from home is represented by the graph. At the same time, her brother Jonah leaves their house and drives to the same practice field along the same route as Karina. His speed is 24 miles per hour.

Answer 1

Karina: 9 miles ÷ 30 miles/hour = 3/10 hour

= (3/10 hr)(60 min/hr)

= 18 minutes

Jonah: 9 miles ÷ 24 miles/hour = 3/8 hour

= (3/8 hr)(60 min/hr)

= 22.5 minutes

Jonah arrives at the soccer field 4.5 minutes after Karina.