sineliheshan sineliheshan

17-06-2022
Mathematics

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The length of a rectangle is 5 less than 10 times its breadth. If the perimeter is 34cm, find the length and breadth. Please use a variable for this question.

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17-06-2022

Let breadth be X

Length= 10x-5

Perimeter= 2(l+b)

= 2[(10x-5)+x]

34= 2(11x-5)

34= 22x-10

34+10=22x

[tex]x = \frac{44}{22} = 2 \: cm[/tex]

Length= 10×2-5= 15 cm

So Length= 15cm Breadth= 2cm

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