Question

the costume designer for the school play uses 4 feet of fabric to make 8 costumes. at the same rate, how many costumes can the designer make with 3 yards of fabric?

Answer 1

We know that 1 yd= 3 ft.

3 yd* (3 ft/ 1 yd)* (8 costumes/ 4 ft)= 18 costumes.
(Note that the unit cancel out so you get the answer)

The final answer is 18 costumes~

Answer 2

Well the first thing you need to know is that there are 3 feet in 1 yard. Therefore 3 yards is equal to 9 feet of fabric. The next thing you need to know is how many costumes she can make with 1 foot of fabric which is just 8 divided by 4 so your answer is 2. Then you just multiply 9 and 2 to get 18 costumes. Therefore the designer can make 18 costumes with 3 yards of fabric if she goes at the same rate.