Question

find the value of x given perimeter of rectangle is 78​

Answer 1

Step-by-step explanation:

Width=w

So length = 2w + 3

Perimeter= 2(length + width)

78 = 2(2w +3 +w)

39 = 2w + 3+ w

39= 3w + 3

36=3w

18 =w

l=w+3 =18+ 3=21

so dimensions are

length=l=21

width = w =18

Answer 2

Step-by-step explanation:

4X=78

X=78/4=19.5

I think it is helpful for you