Question

your aunt is building a garden in her back yard. she has 90ft of fencing to surround it. if she wants the length to be 15ft longer than the width. what will the dimensions of the garden be?

Answer 1

15ft by 30ft.

Answer 2

do you know the equation??

Answer 3

Do you need an equation? You're working off perimeters, you have 90ft of fence, so every length you make has to have an equal counterpart (for it to be rectangular). This gives you 45ft (90/2). If the length and the width have to have a difference of 15ft, the only thing that makes real sense is for it to be 30ft by 15ft, as 30-15 is 15, and 30+15=45.