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#1 2014-07-02 22:46:35

burgess
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Registered: 2014-06-26
Posts: 49
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problem on streams

Help required to solve algebra 1 homework

A boat covers a certain distance downstream in one hour, while it comes back in one and half hours. If speed of the stream be 3 kmph , what is the speed of the boat in still water?

Thanks

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#2 2014-07-03 00:10:25

Chris2
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From: Mathlifrey
Registered: 2014-04-23
Posts: 913
Website

Re: problem on streams

15km/h


Do not be anxious about tomorrow, for tomorrow will be anxious about itself. Let the day's own trouble be sufficient for the day. - Jesus Christ

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#3 2014-07-03 00:19:39

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,481

Re: problem on streams

Hi;

Let s = the speed of the boat in still water.

s = 15 km/hr


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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