Question

Jonathan has 25 coins in his pockets and they are all either nickels or quarters. If he has a total of

$3.25, how many of the coins are nickels and how many are quarters. Give me two equations and the answer in nickels and quarters

Answer 1

The answer is 10 quarters and 15 nickels

Explanation:

Lets say x equals the number of quarters and y quals the number of nickels. Since there is a total of 25 coins that means that x+y=25. But, the quarter costs 0.25, and the nickel costs 0.05. That means that we have to multiply the number of each coin with their cost. Which leads us to: (x*0.25)+(y*0.05)=3.25. By solving these two equations you'll see that x=10 and y=15.