A person made 4 blankets. each blanket used 180 inches of ribbon for the border. How many yards of ribbon did the person use for all four blankets
180 inches X 4 blankets = 720 inchesĀ
1 yard = 3 feet
1 foot = 12 inches
12 inches X 3 = 36 inches
720 inches / 36 = 20 yards