Astudent has some $1 and $5 bills in his wallet. he has a total of 14 bills that are worth $34. how many of each type of bill does he have?

Solution:

we are given that

A student has some $1 and $5 bills in his wallet.

Let there x $1 bills and y number of $5 bills.

He has a total of 14 bills that are worth $34.

So we can write

Now solve these two equations together using substitution as follows

Hence there are 9 $1 bills and 5 bills are of $5.