Question

______1. One side of a rectangle is 3m more than the other. If the perimeter of the rectangle is 30 m, what are its dimensions? L= 4m and W= 7m C. L= 6m and W= 9m L= 5m and W= 8m D. L= 7m and W= 10m

Answer 1

6m by 9 m

Explanation:

x = one side of the rectangle

x+3 = other side

The perimeter of a rectangle is

P = 2(l+w)

P =2( x+ x+3)

P = 2(2x+3)

30 = 4x+6

30 -6 = 4x

24 = 4x

Divide by 4

24/4 = 4x/4

6 =x

One side is 6 and the other is 6+3 or 9