The length of a rectangular piece of steel in a bridge is 5 meters less than triple the width. The perimeter of the piece of steel is 38 meters. Find the length of the piece of steel. Find the width of the piece of steel.

1

Jawapan

2016-01-09T03:57:04+08:00
Width = y
length = 3y - 5

2(y) + 2(3y - 5) = 38
2y +6y -10 = 38
8y = 48
y = 48 /8
y = 6 meter

width
= y
= 6 meters

length
= 3y - 5
= 3(6) - 5
= 18 - 5
= 13 meters