Question

Anthony earned $131 in tips last night while working at the restaurant. If his tips

consisted of $1 bills and $5 bills only and he counted 47 bills in total, then how
many $5 bills did Anthony receive?

Answer 1

Given:

Total income form tips = $131

His tips consisted of $1 bills and $5 bills only.

Total number of bills = 47

To find:

The number of $5 bills.

Solution:

Let x be the number of $1 bills and y be the number of $5 bills.

Total bills :
`x+y=47` ...(i)

Total income :
`x+5y=131` ...(ii)

Subtract (ii) from (i), we get

`x+5y-(x+y)=131-47`

`x+5y-x-y=84`

`4y=84`

`y=21`

Therefore, the number of $5 bills is 21.