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If the tax rate is seven percent, what will the sales tax be for a truck that costs 16000 dollars?
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Let’s solve this problem by setting up a proportion.
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We’re given these values: seven percent and 16000 dollars.
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But we know that our seven percent can be turned into a fraction out of 100, so seven percent can be represented by a fraction seven out of 100.
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In this setup, the seven represents the amount that is the sales tax; what do you think 100 represents?
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The price of the item in this setup, 100, represents the price of the item before you add the sales tax.
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And we know that our truck costs 16000 dollars before we add the sales tax.
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So we’ll substitute the price of the item with 16000 dollars.
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How would we get from 100 to ~~1600~~ [16000]?
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What can we multiply by 100 to get ~~1600~~ [16000]?
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160; 100 times 160 equals 16000.
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And when we multiply the denominator by something, we need to multiply the numerator by that same amount.
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So we should multiply seven times 160 to find our sales tax.
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Seven times 160 equals 1120.
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Now we’re gonna look back at our question to see what value they were asking us for.
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They asked, what will the sales tax be for a truck?
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So we know that the sales tax is 1120 dollars.
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If the question had asked us what the total cost of the truck would be, we would have to add the sales tax to the original price of the truck.
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But in this case, we’re only asked to find the sales tax, which we’ve done here.