We need to solve this backwards. First, we need to find the rate or speed of Shanic's car, by: [tex]\frac{93}{1.5} = 62[/tex]. Next, go backwards, add 10 mph to 62 mph - which we got it earlier - and get 72 mph. Then divide 3 - since it said 3 times, and going backward, we divide - which we got earlier and get 24 mph.
