Question

HELP The perimeter of a rectangle is 150 inches the lengh is 3 inches longer than 5times the width find the length

Answer 1

12 inches

if the length = x,

P = 150 inches

=2 { ( 5x + 3 ) + x }

=10x + 6 + 2x

=12x + 6

Therefore 12x + 6 = 150

12x = 150 - 6

12x = 144

x = 12