Question 240653
x + y = 5/4


x = .5*y


this makes:


y = 2*x


substituting in original equation gets:


x + 2*x = 5/4


combine like terms to get:


3*x = 5/4


divide both sides by 3 to get:


x = 5/12


y = 2x so:


y = 5/6


substitute in original equation of x + y = 5/12 to get:


5/12 + 5/6 = 5/12 + 10/12 = 15/12 = 5/4


since x = 5/12 and y = 5/6, the product of the two numbers is:


5/12 * 5/6 = 25/72


that would be selection A.