SOLUTION: can you please help me for solve this question?..:( here is a ques. a man decides to travel 80km in 8 hours partly by foot and partly on a cycle.ifhis speed on foot is 8km per hr

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Question 655599: can you please help me for solve this question?..:( here is a ques.
a man decides to travel 80km in 8 hours partly by foot and partly on a cycle.ifhis speed on foot is 8km per hr and on cycle is 16km per hr,what distance he travel on foot?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
Note: D+=+r%2At
Question states***
total D = 80km
total time = 8hrs
Let t and (8-t) represent the time traveled at 16kmph and 8kmph respectively
Question states***
16kmph%2At+%2B+8kmph%288-t%29+=+80km
8t = 16
t = 2hr, time traveled on cycle. 6 hr by foot
and...
16kmph%2A2h+%2B+8kmph%2A6h+=+80km