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statuscvo [17]
2 years ago
13

A store is having a 20%-off sale on all pairs of shoes. Kurt wants to buy a pair of shoes that have a regular price of x dollars

. The sales tax is 7%. Which expression represents the final price of the shoes?
Mathematics
1 answer:
tangare [24]2 years ago
3 0

Answer:

\$ \ \dfrac{428}{500}x

Step-by-step explanation:

Regular price of a pair of shoes = $x

Discount offered = 20%

Amount of discount offered = 20% of $x

Discounted price = Regular price - Amount of discount

Discounted price = $x - 20% of $x = 80% of $x = \$ \frac{4}{5}x

Now, it is given that there is a sales tax of 7% as well on the price.

Sales tax is applied on the discounted price.

Therefore, sales tax = 7% of \$ \frac{4}{5}x

Final Price after applying the sales tax = \$ \frac{4}{5}x + 7% of \$ \frac{4}{5}x  

\Rightarrow 107\%\ of\ \$\ \ \dfrac{4}{5}x

\Rightarrow \$ \ \dfrac{428}{500}x

Therefore, the expression to represent the final price of the pair of shoes:

\$ \ \dfrac{428}{500}x

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