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Bob travels in an airplane a distance of 2100 km. For one-third of the distance, the
airplane flies at a speed of 760 km/h, and for the rest of the distance, it flies at a speed of
800 km/h. How long does the trip take?

 Sep 16, 2020
 #1
avatar+27001 
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1/3 of the distance = 700 km     remaining distance = 1400 km

 

distance / rate = time

700 km / 760 km/h    +   1400 km / 800 km/ hr   =   .........   hr

 Sep 16, 2020

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