Question

There are 25 coins inside a container. Some of the coins are nickels, and the rest are quarters. The value of the coins is $4.05. Let n represent the number of nickels and q be for the number of quarters. What equation represents this problem?​

Answer 1

• n + q = 25
• 0.05n + 0.25q = 4.05

Explanation:

Two equations are required to represent this problem as posed.

1. An equation for the number of coins:

n + q = 25

2. An equation for the value of the coins:

0.05n + 0.25q = 4.05