Marie rode her bike 325 miles in 20 hours last month. Tamara rode her bike 255 miles in 15 hours last month. Are these speeds proportional? Explain. 1. No; Marie's rate is 16.25 m/h and Tamara's rate is 17 m/h
2. Yes; to find both speed rates, you need to divide the distance by the time.
3. No; Marie's distance and time are greater than Tamara's distance and time.
4. Yes; Marie's and Tamara's rates are almost the same.