MATHEMATICSATTENDED AN INTERNATIONAL CONFERENCE AS ANACCOMPLISHMENT F...

42. e. Because the 15-year-old requires an adultmiles per hour plus 15 miles per hour, which isticket, there are 3 adult tickets at $7.50 each andequal to 50 miles per hour. 2,100 miles divided byone child’s ticket at $5 for a total of $27.50.50 miles per hour equals 42 hours.