Respuesta :

mlarsen5000

Answer:

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

B) The perimeters are 36

Step-by-step explanation:

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

6x-6=3x+15

6x-3x=15+6

3x=21

x=7

TRIANGLE: 3(x+5)=3(7+5)=3(12)=36

RECTANGLE: x+x+2x-3+2x-3=7+7+14-3+14-3=36

nchoppa2324

Answer:

A rectangle and an equilateral triangle have the same perimeter. The length of the rectangle is three times the width. Each side of the triangle is 8 cm. An equilateral has all three sides of equal measure.

Step-by-step explanation: