cocogage cocogage
  • 10-09-2021
  • Mathematics
contestada

The length of a rectangle is X +5 in the width is X -3 find the value of X if the perimeter of the rectangle is 40 cm. P equals 21+ 2W.

Respuesta :

anasweeney43 anasweeney43
  • 13-09-2021

Answer:

Width: 6cm

Length: 14cm

Step-by-step explanation:

40 = 2(x+5) + 2(x-3)

40 = 2x+10+2x-6

40=4x+4

40-4=4x

36/4 = x

x = 9

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