Question

A jar of coins contains only quarters and dimes. The total amount of money in the jar is $4.40, and there are 23 coins.

A. Write a system of equations that can be used to find d, the number of dimes, and q, the number of quarters, in the jar.

B. How many quarters are in the jar?

Answer 1

(1) d+q=23 (the total number of coins is 23)

(2) 10d+25q = 440 (the total value of the coins, at 10 cents for each dime and 25 cents for each quarter, is 440 cents)

there are 14 quarters and 9 dimes

Explanation: