Flannery used 30 lilies and 78 roses to create six identical flower arrangements. write an equation to describe the relationship between l, the number of lilies, and r, the number of roses.

Let l represents the number of lilies and r represents the number of roses.

As per the statement: Flannery used 30 lilies and 78 roses to create six identical flower arrangements.

Total number of flowers = 30 + 78  = 108

Number of flower arrangement needed is, 6

i.e, l = r = 6

Number of Lilies in one arrangement =

Number of Roses in one arrangement =

then;

Therefore, an equation to describe the relationship between l and r are:

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right