A waiter earned $28 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 16 bills.

Question

lgbasallote · Answer

hint:

let x = number of $1 bills
y = number of $5 bills

anonymous · Answer

i ve already tried solving it! i just can figure it out!

lgbasallote · Answer

the total number of bills is 16...so number of $1 bill + number of $5 bill = 6

lgbasallote · Answer

that's 16 not 6

lgbasallote · Answer

now just transform it into algebra

anonymous · Answer

well you could use trial and error for this one since its not a very large

anonymous · Answer

soo 2?

lgbasallote · Answer

wait...what are you supposed to do? find the number of $5 bills? or just create an equation?

anonymous · Answer

max amount of $5 bills in $28 and then work your way down

anonymous · Answer

find the number of $5 bills in 28 only sing 16 1 or 5 dollar bills

anonymous · Answer

using*

lgbasallote · Answer

okay here's a hint...use this equation (i suggest you understand what it means)

x + y = 16
x + 5y = 28

since y is the number of 5 dollar bills...solve for y

anonymous · Answer

makes no since

lgbasallote · Answer

x + y = 16

x is the number of 1 dollar bill
y is the number of 5 dollar bill

so the number of 1 dollar bill + number of 5 dollar bill = 16

lgbasallote · Answer

the total amount is 28 dollars

so it would be $1 times the amount of 1 dollar bill wich is x so 1 times x = x

5 dollars times the amount of 5 dollar bills = 5 times x = 5y

so x + 5y = 28

lgbasallote · Answer

anyway use systems of equations to solve for y

x + y = 16 
x + 5y = 28

anonymous · Answer

soo 3 $5 bills

anonymous · Answer

yes

anonymous · Answer

thanks