William gave the cashier at Billy Bob’s BBQ two $20-dollar bills to pay for 4 chopped beef sandwiches to go. The cashier gave him $6.84 in change.
What is the cost in dollars and cents for a chopped beef sandwich?
William paid a total of 2 * $20 = $<<2*20=40>>40.
The total cost of the sandwiches is $40 - $6.84 = $<<40-6.84=33.16>>33.16.
The cost of one sandwich is $33.16 / 4 = $<<33.16/4=8.29>>8.29. Answer: \boxed{8.29}.
To find the cost of a chopped beef sandwich, we need to subtract the change given back to William from the total amount he paid.
First, let's calculate the amount William paid for the 4 chopped beef sandwiches. He gave the cashier two $20-dollar bills, which amounts to $40 in total.
Next, we subtract the change given back to William from the total amount he paid. The cashier gave him $6.84 in change. Therefore, we subtract $6.84 from $40:
$40 - $6.84 = $33.16
So, the cost of 4 chopped beef sandwiches is $33.16 in dollars and cents.
Note: If you wanted to find the cost of a single chopped beef sandwich, you would need to divide the total cost ($33.16) by the number of sandwiches (4).
To find the cost per chopped beef sandwich, we can subtract the change given back from the total amount William paid.
William paid a total of $20 x 2 = $<<20*2=40>>40 for the sandwiches.
The change given back was $6.84.
To find the cost per sandwich, we subtract the change given back from the total amount paid:
$40 - $6.84 = $<<40-6.84=33.16>>33.16
Therefore, the cost in dollars and cents for a chopped beef sandwich is $33.16.