Question

Wilma used 60 centimeters of lace to make a border around a rectangular card. the width of the card is 20 centimeters. what is the length of the card?

Answer 1

let L=length and W=width and T=total lace
so
2L + 2W = T
and we know
T= 60 and W=20
so
2L + 2(20) = 60
2L + 40=60
2L = 20
so L= ?