Janie designed a miniature couch for a dollhouse based on her own couch. Janie's couch is 7 1/2 feet long. The scale of the dollhouse is 1 inch : 2 feet. What is the length of the miniature couch for the dollhouse?

Answer 1

First find the length of the miniature couch in inches by multiplying the length of the real couch in feet by the number of inches per foot: 7.5 feet * 12 inches/foot = <<7.5*12=90>>90 inches
Then divide that number by the number of feet per inch in the dollhouse scale to find the length of the miniature couch: 90 inches / 2 feet/inch = <<90/2=45>>45 inches. Answer: \boxed{45}.