A rectangular-shaped carpet remnant that measures x feet by y feet is priced at $70. What is the cost of the carpet, in dollars per square yard? (9 square feet = 1 square yard) Select the correct option
A) 70xy
B) 630xy
C) xy/9
D) xy/70
E) 630/(xy)
xy sq ft = $70   1 sq ft = $70/xy   multiplying by 9 on both side   9 sq ft = $630/xy   or 1 sq yard = $630/xy   Hence 630/(xy).
<result>E</result>
A rectangular-shaped carpet remnant that measures x feet by y feet is priced at $70. What is the cost of the carpet, in dollars per square yard? (9 square feet = 1 square yard)