SOLUTION: Joseph watches the roadside mile markers during a long car trip on an interstate highway. He notices that at 10:45 a.m. they are passing a marker labeled 101, and at 11:00 a.m. the

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Joseph watches the roadside mile markers during a long car trip on an interstate highway. He notices that at 10:45 a.m. they are passing a marker labeled 101, and at 11:00 a.m. the      Log On

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Question 261080: Joseph watches the roadside mile markers during a long car trip on an interstate highway. He notices that at 10:45 a.m. they are passing a marker labeled 101, and at 11:00 a.m. the car reaches marker 119. What is the cars speed?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
they traveled 18 mi in 15 min
18*4=72 mph