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Najma is buying four sweaters that cost [tex]$\$ 14.99$[/tex] each. She has two gift cards worth [tex]$\[tex]$ 15.00$[/tex][/tex] each. Which expression represents the amount of money Najma will need to pay at the cash register after her gift cards have been applied to her purchase?

A. [tex]\frac{14.99}{15}(4)(2)[/tex]
B. [tex]14.99(4) + 15(2)[/tex]
C. [tex]14.99(4) - 15(2)[/tex]
D. [tex]14.99(2) \cdot 15(4)[/tex]


Sagot :

To determine how much money Najma needs to pay at the cash register after using her gift cards, we need to go through the following steps:

1. Calculate the total cost of the sweaters:
- Najma is buying 4 sweaters.
- Each sweater costs \[tex]$14.99. - The total cost of all the sweaters can be calculated by multiplying the cost of one sweater by the number of sweaters: \[ \text{Total sweater cost} = 14.99 \times 4 = 59.96 \text{ dollars} \] 2. Calculate the total value of the gift cards: - Najma has 2 gift cards. - Each gift card is worth \$[/tex]15.00.
- The total value of the gift cards can be calculated by multiplying the value of one gift card by the number of gift cards:
[tex]\[ \text{Total gift card value} = 15.00 \times 2 = 30.00 \text{ dollars} \][/tex]

3. Calculate the difference between the total cost of the sweaters and the total value of the gift cards:
- To find out how much Najma needs to pay after using her gift cards, we subtract the total value of the gift cards from the total cost of the sweaters:
[tex]\[ \text{Amount Najma needs to pay} = \text{Total sweater cost} - \text{Total gift card value} = 59.96 - 30.00 = 29.96 \text{ dollars} \][/tex]

Thus, the correct expression representing the amount of money Najma will need to pay at the cash register, after her gift cards have been applied to her purchase, is:

[tex]\[ 14.99(4) - 15(2) \][/tex]