Charmaine's coffee shop makes a blend that is a mixture of two types of coffee. Type a coffee cost Charmaine $4.35 per pound, and type B cost $5.80 per pound. This month the blend used twice as many pounds of type B coffee as type a, for a total cost of $542.30 how many pounds of type a coffee were used?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14