having trouble understanding how to write this...

Question

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.

Answer 1

Yes, this wording can be confusing. Let's think about it like this. If there are 6 identical flower arrangements, then each must have the same number of flowers, so there are 5 lilies per arrangement and 13 roses per arrangement. This means that when there are 5 lilies (L) there are 13 roses (R). So the number of lilies is the same as 5/13ths the number of roses. Further, the number of roses is 13/5th the number of lilies. This means are equations are L=5/13R and R=13/5L. I hope that helped! :)