Part B
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)
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.