Question

Jack has a total of 36 coins, all quarters and nickels. Together they are worth $4.40.How many of each type of coin does he have?

(algebraic solution whit just 1 variable)

Answer 1

q=26; n=10.

Explanation:

1. if number of the nickels is 'n', then the number of the quaters is '36-n';

2. if together they are 440 cents, then 15*(36-n)+5*n=440;

3. solution of the equation is n=10, then

4. number of quaters is 36-10=26;

5. Finally, number of the quaters = 26, nickels = 10.