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steposvetlana [31]
3 years ago
12

Ava bought a collection of hardcover novels and paid $450 including sales tax the sales tax 10% How much was the price of collec

tion of novels before taxes?
Mathematics
1 answer:
scoray [572]3 years ago
5 0

Answer:

The price of collection of novels before taxes was <u>$409.10</u>.

Step-by-step explanation:

Given:

Ava bought a collection of hardcover novels and paid $450 including sales tax.

The sales tax is 10%.

Now, to find the price of collection of novels before taxes.

Let the price of collection of novels before sales tax be x.

The price of collection of novels including sales tax = $450.

Rate of sales tax = 10%.

Now, to get the price before sales tax by putting an equation:

x=450-10\%\ of\ x

x=450-\frac{10}{100} \times x

x=450-0.10\times x

x=450-0.10x

<em>Adding both sides by 0.10</em>x<em> we get:</em>

<em />1.10x=450<em />

<em>Dividing both sides by 1.10 we get:</em>

x=\$409.10.

Therefore, the price of collection of novels before taxes was $409.10.

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we can use the discriminant b² - 4ac to determine the nature of the roots

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