Question

John saved 65 coins. He saved nickels and dimes only. If he had totally $4.90, how many nickels did he have?

Answer 1

Explanation:

Let n = nickels and d = dimes

n+d = 65

5n+10d = 490

Solve for n:

n = 65 - d

Substitute the equation:

325 + 5d = 490

5d = 165

d = 33