Question

A collection of nickel and quarters is worth $4.65. There are 3 more nickels than quarters. How many coins are there in the collection?

Answer 1

There are 15 quarters and 18 nickles

Explanation:

The equations derived from this word problem are

5n + 25q = 465

and

3 + q = n

Fill (3 + q) into n in the first equation then solve. You get q = 15.

Then plug 15 into second equation (cause it's easier).

You get n = 18