you have a dish full of nickels and quarters. if there are 16 coins together worth $2.20. how many of each coin do you have?

Question

answer in substitution or elimination and show all work

Answer 1

assume x nickels, y quarters,

x + y = 16

0.05x + 0.25y = 2.2

x + y = 16

5x + 25y = 220

x + y = 16

x + 5y = 44

4y = 28

y=7

x = 16 - 7 = 9

9 nickels, 7 quarters