With one ! amy can ride her bike 4 miles in 30 minutes. sebastian can ride his bike 3 miles in 24 minutes. at her 24current rate, what is the distance, in miles, amy can ride her bike in 12 minutes? (a) 1.6(b) 2.5(c) 3.0(d) 9.0 sally drives 66 miles in 3 hours and molly drives 72 miles in 4 hours. what is the difference between 23their average speeds, in miles per hour? (a) 4(b) 6(c) 18(d) 22

24. (A) 1.6

23. (A) 4

Amy's distance is proportional to the time spent riding, so in 12/30 of the time (12 minutes out of 30 minutes), she will ride 12/30 of the distance:

... (12/30)·(4 mi) = 48/30 mi = 1.6 mi

Sally's speed is (66 mi)/(3 h) = 22 mi/h. Molly's speed is (72 mi)/(4 h) = 18 mi/h.

The difference between their speeds is (22 -18) mi/h. = 4 mi/h.

the answers are in the images, i received 100% on this assignment. hope this !