Problema Solution
Tracey rides her bike nine kilometers a day. How many miles does she ride in a week?
Answer provided by our tutors
1 km = 0.621371 mi
9 km = 9*0.621371 mi
1 week = 7 days
1 day = 1/7 week
9 km per day = 9*0.621371 mi per day = 9*0.621371/(1/7) mi per week = 7*9*0.621371 mi per week = 39.146373 mi per week
Tracy rides approximately 39.15 mi per week.