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help with maths

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Postby LENA » Sun May 13, 2007 1:57 am

cyfo wrote:a.(a+3)=88^2 this the right one
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Postby Sotos » Sun May 13, 2007 2:03 am

3.6403678285111 :D :P
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Postby cyfo » Sun May 13, 2007 2:05 am

sotos a= 8 but why for
God sake
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Postby LENA » Sun May 13, 2007 2:09 am

cyfo wrote:sotos a= 8 but why for
God sake


Cyfo why you are so sure about the answer?
Where did you find that?
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Postby cyfo » Sun May 13, 2007 2:13 am

a.(a+3)=88^2
8.(8+3)=88^2

if i put 8 for a then 88^2 is correct
but i can solve this
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Postby michalis5354 » Sun May 13, 2007 2:16 am

cyfo wrote:it is rectangle 11x8=88^

but the problem is a.(a+3)=88 what the valiou for (a) .i know is 8 but how to solve it


You have nothing to solve as from the information provided the area of the rectangle is always base*height and in this case is 88

If base = a
and height = a+3

so it is true that from the information provided that a*(a+3)=88

a = base =8 and
a+3= height = 11 so If you substitute a(a+3)=88 --8*11=88
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Postby Svetlana » Sun May 13, 2007 6:16 am

I am out dancing and you spend your Saturday night/early Sunday morning doing this!!!!!

Lana
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