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23-01-2014
Mathematics

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The perimeter of a sheet of paper is 38cm. If the width is 8 cm what is the length of the paper?

Respuesta :

23-01-2014

15. (2•l)+(2•w)=38.
(2•l)+8=38.
Subtract 8 from both sides which leaves (2•l)=30.
Divide by 2 from both sides and that leaves 15.

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