A rectangular-shaped carpet that measures x feet by y feet is priced at $50. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet) Choose the correct choice from the following choices
A) xy/360
B) 9xy/40
C) 40xy/9
D) 450xy
E) 450/(xy)
The area of the carpet in feet is xy.   The area in square yards is xy / 9.   The price per square yard is 50 / (xy/9) = 450/(xy).   The answer is 450/(xy).
<result>E</result>
A rectangular-shaped carpet that measures x feet by y feet is priced at $50. What is the cost of the carpet, in dollars per square yard? (1 square yard = 9 square feet)