beccarobinson204 beccarobinson204

06-09-2021
Mathematics

contestada

A rectangle is 6 more than 4 times as long as it is wide. If the perimeter is 42, how long is
the rectangle?

Respuesta :

rmbhimpuria rmbhimpuria

06-09-2021

Solution

2(4x + 6) = 8x + 12

8x + 12 + 2x = 42

10x + 12 = 42

10x = 30

x = 3

Therefore the width is 3cm.

3cm * 2 = 6

42 - 6 = 36

36 / 2 = 18

Therefore the length is 18cm

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