Bartel is cropping his family's vacation pictures. He crops them such that the dimensions always have a length, l, that is1.5 times the width, w. If the total area of a picture he cropped is 54 in.², what is the length of the picture?

Question

Bartel is cropping his family's vacation pictures.  He crops them such that the dimensions always have a length, l, that is1.5 times the width, w.  If the total area of a picture he cropped is 54 in.², what is the length of the picture?

anonymous · Answer

|dw:1387037757414:dw|
1.5w x w = 54inch^2
1.5w^2=54
w^2=54/1.5
w=sqrt(54/1.5)

once you find w, you should be able to find the length, as it is l=1.5w