SOLUTION: Joseph watch 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 c

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Question 315058: Joseph watch 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 car's speed?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Joseph watch 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 car's speed?
:
From the given information we can say, the car went 18 mi in 15 min
:
S = 60%2F15 * 18
S = 72 mph