Get Going with Rate: Activity 2 of 3

Susan Miller, an amateur cyclist, bought an expensive new bike that she hoped would greatly increase her speed.

She travelled a 15-mile loop in 48 minutes on the new bike, compared to 50 minutes on the old bike. What was her average speed on each of her two bikes ?

Choose the formula you would use to solve this problem. Type 1, 2, or 3 for your answer.

1) D=RxT

2) R=D/T

3) T=D/R