Part B

Question

Anna gave the clerk two 10-dollar bills. She received $4.51 in change. Anna said the clerk was incorrect and should have given her $14.51. Who is correct? Explain your answer and include an equation or example using money to support your answer.

(2 points)

Answer 1

The clerk is correct.

To show why the clerk is correct, we can set up an equation to represent the situation:

Let x be the amount Anna should have received.
10 + 10 - x = 4.51

Solving for x:
20 - x = 4.51
-x = 4.51 - 20
-x = -15.49
x = 15.49

This calculation shows that Anna should have received $15.49, not $14.51. Therefore, the clerk gave Anna the correct amount of change.