ANSWERS: 2
  • Let V be the speed of the slower car. The faster car's speed is V+10 and since they travel in opposite directions, they are moving apart at a combined speed of 2V+10. Speed = distance / time 2V + 10 = 288 / 3 = 96 2V = 86 V = 43 The speeds are 43 and 53 mph.
  • 10 mph x 3=30 miles 288-30=258 miles 258/2=129 miles after 3 hrs 129/3=43 mph second car 129+30=159 miles first car 159/3=53 mph first car

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