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A train traveled 210 mi in 3.5 h to its first stop. It then continued on traveling another 130 mi in 2.5 h.

What was the average speed of the train for the entire journey?

Round to the nearest tenth, if necessary.

52.0 mi/h

56.0 ​ mi/h

56.7 ​ mi/h​

60.0 ​ mi/h ​

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Answer:

56.7 ​ mi/h​


Step-by-step explanation:

The formula for average speed is:

Average Speed = [tex]\frac{TotalDistance}{TotalTime}[/tex]


Thus we have:

Average Speed = [tex]\frac{210+130}{3.5+2.5}\\=\frac{340}{6}\\=56.66[/tex] mph


Rounding to the nearest tenth, we have

Average Speed = 56.7 mi/h

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