A certain store sells only black shoes and brown shoes. In a certain week, the store sold x black shoes and y brown shoes. If 2/9 of all shoes sold that week were black, which of the following expressions represents the value of y, in terms of x?  Choices:	A) 7x/2	B) x/2	C) 2x/3	D) 3x/2	E) 2x
x/(x+y) = 2/9   9x = 2x+2y   7x = 2y   y = 7x/2   7x/2nswer 7x/2
<result>A</result>
A certain store sells only black shoes and brown shoes. In a certain week, the store sold x black shoes and y brown shoes. If 2/9 of all shoes sold that week were black, which of the following expressions represents the value of y, in terms of x?