54.4k views
1 vote
jim has 24 coins made up of nickels and quarters. The value of the coins is $4. How many of each coin does he have?

User Inderjit
by
7.7k points

1 Answer

4 votes

Final answer:

To find the number of nickels and quarters Jim has, we can set up a system of equations. Solving the system of equations gives us 10 nickels and 14 quarters.

Step-by-step explanation:

To solve this problem, we can set up a system of equations. Let's assume Jim has x number of nickels and y number of quarters. Since he has a total of 24 coins, we know that x + y = 24. Additionally, the value of the coins is $4, so the value of the nickels (which are worth 5 cents each) plus the value of the quarters (which are worth 25 cents each) must equal $4 when converted to cents. This can be expressed as 5x + 25y = 400. Now we can solve this system of equations to find the values of x and y.

We can start by multiplying the first equation by 5 to eliminate x: 5(x + y) = 5(24) → 5x + 5y = 120. Next, we can subtract the new first equation from the second equation to eliminate x: (5x + 25y) - (5x + 5y) = 400 - 120 → 20y = 280. Dividing both sides of the equation by 20 gives us y = 14.

Now, we can substitute the value of y into the first equation to find x: x + 14 = 24 → x = 10. Therefore, Jim has 10 nickels and 14 quarters.

User Maryalice
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories