Joey leaves point A traveling due east at a constant speed of 35 miles per hour. After Joey has dri?

Question

Joey leaves point A traveling due east at a constant speed of 35 miles per hour. After Joey has driven 22 miles, his sister Louise leaves point A also traveling due east on the same road. At what constant rate of speed, in miles per hour, must Louise drive in order to catch up to Joey in 2 hours?


46

35

59

70

Answer

Distance = speed x time

Speed for Joey is given 35. Distance for Joey is 22 miles + 35mph x 2hours = 92 miles.

For Louise: 92 miles = speed x 2 hours. So speed = 92 miles/2 hours = 46mph

Joey leaves point A traveling due east at a constant speed of 35 miles per hour. After Joey has dri?

Answers (1)