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Question

A bird leaves its nest and travels 18 miles

per hour downwind for xx hours. On the

return trip, the bird travels 3 miles per hour

slower and has 5 miles left after xx hours.

 

a. What is the distance of the entire trip? 

 _ miles

 

b. How long does the entire trip take? 

 _ hours  _ minutes &  _ seconds

 Sep 30, 2022
 #1
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Let the number of hours flying downwind==H


18H ==Distance travelled downwind.


[18H - 5] / 15 ==18H/18 


H == 5/3 - hours spent flying downwind


[18*5/3 - 5] / 15 + 5/15==2 - hours spent flying back to its nest.


Total distance==[5/3 * 18] * 2 ==60 miles.


5/3 + 2 == 11 / 3 ==3 hours + 40 minutes - total time spent flying back and forth.

 Oct 1, 2022

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