Theresa has $12 in nickels and quarters. if she has the same number of each kind of coin, how many nickels and quarters does she have?

She has 40 nickels and 40 quarters .

Step-by-step explanation:

Let be "n" the number of nickels Theresa has and "q" the number of quarters Theresa has.

You know that she has a total of $12 in nickels and quarters. In cents, this is:

Then, based on this you can write the following expression:

Since , you can rewrite it as:

Solving for "n", you get:

Therefore she has 40 nickels and 40 quarters .