Question

a student has some $1 and $5 bills in his wallet. He has a total of 13 bills that are worth $33. How many of each type of bill does he have?

Answer 1

Answer: The number $1 bills is 8 and the number of $5 bills is 8.

Step-by-step explanation:

Let x denotes $1 bills and y be denotes $5 bills.

Then , we have the following equations :-

$x+y=13-------(1)\\\\x+5y=33-------(2)$

Subtracting equation (1) from (2), we get

$4y=33-13=20\\\\\Rightarrow y=\dfrac{20}[4}=5$

Substitute y=5 in equation(1), we get

$x+5=13\\\\\Rightarrow\ x=13-5=8$

Hence, the number $1 bills is 8 and the number of $5 bills is 8.

Answer 2

He has 6 $5 dollar bills and 3 $1 dollar bills