Question

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.

Answer 1

Width: 6cm

Length: 14cm

Explanation:

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

40 = 2x+10+2x-6

40=4x+4

40-4=4x

36/4 = x

x = 9