Question

A waiter earned $23 in tips in an hour. He was paid in $1 bills and $5 bills. Use a model to determine how many $5 bills he received if he received a total of 15 bills.

Answer 1

let x be the number of 1$ bills and y the number of 5$ bills
whats x+y?

Answer 2

no idea?

Answer 3

x + 5y = 23
x + y = 15

Answer 4

x = number of 1 dollar bills
y = number of 5 dollar bills

Answer 5

Solve the system

Answer 6

okay, thanks.

Answer 7

to @kymberlyf only:

If you can solve it and post the correct values for x and y, I'll give you a medal.