Answered

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A. x+x+x+3x+3x=9
B. x+x+x+x+x=18
C. x+x+x+3x+3x=18
D. 9x^5=18

A Xxx3x3x9 B Xxxxx18 C Xxx3x3x18 D 9x518 class=

Sagot :

sqdancefan

9514 1404 393

Answer:

  a)  C  x +x +x +3x +3x = 18

  b)  x = 2

  c)  2 cm, 6 cm

Step-by-step explanation:

a) The sum of the lengths of the sides is equal to the length of the perimeter. The appropriate equation is ...

 x +x +x +3x +3x = 18

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b) Simplifying, the equation becomes ...

  9x = 18

  x = 2 . . . . . divide by 9

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c) The shorter sides are x = 2 cm.

The longer sides are 3x = 6 cm.

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