Kareem went to Kinko’s to have a photo enlarge into a poster that is 36 inches high. The enlargement is 2¼  times the original size of the picture. How high is the original picture?

Respuesta :

the enlargement is 36...it is 2 1/4 (or 2.25) times the original (x)....2.25x

36 = 2.25x
36 / 2.25 = x
16 inches = x <== original size