Problema Solution
the length of a rectangle piece of steel in a bridge is 3 meters less than double the width. the parimeter of the piece of steel is 42 meters. find the length of the piece of the steel. find the width of the piece of steel
Answer provided by our tutors
let
l = the length of the piece of the steel
w = the width of the piece of steel
the length of a rectangle piece of steel in a bridge is 3 meters less than double the width:
l = 2w - 3
the parimeter of the piece of steel is 42 meters:
2(l + w) = 42
by solving the system of equations:
l = 2w - 3
2(l + w) = 42
we find:
l = 13 m
w = 8 m
click here to see the step by step solution of the system of equations:
the length of the piece of the steel is 13 meters.
the width of the piece of steel is 8 meters.