william gave the cashier at billy bobs bbq two $20 - dollar bills to pay for 4 chopped beef sandwiches to…

william gave the cashier at billy bobs 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 gave the cashier at billy bobs 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?

Answer

Explanation:

Step1: Calculate the total amount William gave

William gave two $20 - dollar bills. So the total amount he gave is (2\times20=$40).

Step2: Calculate the total cost of 4 sandwiches

The cashier gave him ($6.84) in change. So the total cost of 4 sandwiches is (40 - 6.84=$33.16).

Step3: Calculate the cost of one sandwich

Let the cost of one sandwich be (x). We know that (4x=33.16). Then (x=\frac{33.16}{4}). [ \begin{align*} \frac{33.16}{4}&=\frac{32 + 1.16}{4}\ &=\frac{32}{4}+\frac{1.16}{4}\ & = 8+0.29\ &=8.29 \end{align*} ]

Answer:

(8.29)