a piggy bank contains only nickels and quarters. The total value in the back is $3.80. Write an equation in standered form that models the possible combinations of nickels and quarters in the piggy bank
0.05n + 0.25q = 3.80....I just used the variables (n) for nickels and (q) for quarters....but u could use x and y if u want to. But if u do this, be sure and label ur variables
