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Alex bought six books priced at $8 each. He got a discount of 20% off the total cost. How much did Alex pay for the books? Write your answer up to two decimal places. Alex paid $? for the book?

Answer :

CRaine1
Six books at 8 dollars each is equivalent to $48.00

You are only paying 80% of that cost (100%-20%)

Therefore you are multiplying 48 by .8 

Your answer should be equal to $38.40

Answer:  Alex paid $38.4 for the books.

Step-by-step explanation:  Given that Alex bought six books priced at $8 each and he got a discount of 20% off the total cost.

We are to find the amount paid by Alex for the books.

We have

Price of 1 book = $8.

So, price of 6 books = $ (8 × 6) = $ 48.

After a discount of 20%, the cost of 6 books will be

[tex]C_d\\\\=48-20\%\times48\\\\\\=48-\dfrac{20}{100}\times48\\\\=48-\dfrac{48}{5}\\\\=48-9.6\\\\=38.4.[/tex]

Thus, Alex paid $38.4 for the books.

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