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?

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 :            ...(i)

Total income :        ...(ii)

Subtract (ii) from (i), we get

Therefore, the number of $5 bills is 21.

2nd one in the first row is correct

quit

step-by-step explanation: