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28 March, 05:09

A bus averages 60 mi/h traveling to its destination in the first half of its trip through an expressway and 72 mi/h in the second half traveling through a motorway. What is the bus's average speed for the entire trip rounded to the nearest tenth?

A) 64.2 mi/h

B) 63.0 mi/h

C) 65.5 mi/h

D) 66.0 mi/h

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  1. 28 March, 08:04
    0
    D) 66.0 mi/h

    because to find the average, you have to add up all the numbers and for each number you add, you divide it.

    66+72=132

    132:2 = 66.0
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