Liane is building a play house for her daughter and wants the ratio of the length of the rectangular playhouse to its width to be 2:1. Let x represent the width of the playhouse. Which equation can Liane solve to find the width if the perimeter is 80? A) 2x+2=80

B) 2 (2x+2)=80

C) 4x+2x=40

D) 2 (2x+x)=40

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.