If 30 lb of rice and 30 lb of potatoes cost $27.60, and 20 lb of rice and 12 lb of potatoes cost $15.04, how much will 10 lb of rice and 50 lb of potatoes cost? Let x be the cost of 1 lb of rice and y be the cost of 1 lb of potatoes. Set up two linear equations from the given information using x and y as the variables. D = 27.60 :| = 15.04 (Do not factor. Use integers or decimals for any numbers in the equations.) The cost of 10 lb of rice and 50 lb of potatoes is $El. (Simplify your answer.)