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#1 2006-09-21 20:08:26

mahmoudaljamel
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Rectangle !!

The length of a rectangle was increased by 10 m , the width was increased by 5m ,
as a result the area was increased by 1050 m.
Find the original lenth and width


If you always do what you always did, you'll always get what you always got
 

#2 2006-09-21 20:30:04

Dross
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Re: Rectangle !!



Furthermore...

1) How many solutions to this problem are there?
2) What would the dimensions of a square with the above property be?


Bad speling makes me [sic]
 

#3 2006-09-21 23:35:25

mathsyperson
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Re: Rectangle !!




Why did the vector cross the road?
It wanted to be normal.
 

#4 2006-09-24 17:41:53

mahmoudaljamel
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Re: Rectangle !!

This is a question found in a " pre calculus " book , the authers put 80 m and 60 m as the answers , i could reach one equation in two variables , but never come to a second equation .
Now , if we know that the answer should be 60 m and 80 m , can we work back to find any new equation !!
thanks Dross
thanks mathsyperson


If you always do what you always did, you'll always get what you always got
 

#5 2006-09-24 19:38:02

Kurre
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Re: Rectangle !!

Dross wrote:

2) What would the dimensions of a square with the above property be?

should the original rectangle be a square, or the after the width and height have been increased?

 

#6 2006-09-25 18:07:04

Dross
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Re: Rectangle !!

Kurre wrote:

Dross wrote:

2) What would the dimensions of a square with the above property be?

should the original rectangle be a square, or the after the width and height have been increased?

Ah, good question... how about both, just for the practice!

(not at the same time though - two separate questions tongue)


Bad speling makes me [sic]
 

#7 2006-09-28 22:45:03

Kurre
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Re: Rectangle !!

if you let the original rectangle be a square:



if you let the result be a square:

tongue

Last edited by Kurre (2006-09-28 22:47:46)

 

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