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the bookstore at YSU is having a sale in which all items are discounted 20% including tax Kevin paid $63 for his textbook if the sales tax rate is 5% what was the original price for textbook

Respuesta :

Since the final price Kevin paid is $63, we need to "remove" the tax rate and the discount.

To do so, we can divide by 1.05 (+5%) to remove the tax rate and by 0.8 (-20%) to remove the discount.

So we have:

[tex]\text{Price}=\frac{63}{1.05\cdot0.8}=\frac{63}{0.84}=75[/tex]

So the original price is $75

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