Tickets to The Phantom of the Opera just lowered 15%. If the new price is $51.00, what was the original price?
Then
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This is an illustration of a reverse percentage: we don't know the beginning amount, but we do know the amount AFTER a change has occurred.
Since we are comparing amounts and percents, you can use the direct proportion method.
To achieve the same outcome, the proportion could have also been written as follows:
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To find the original price, you can set up an equation where the new price is 85% of the original price. Then, you can solve for the original price. In this case:
85% of the original price = $51.00
So, to find the original price, divide $51.00 by 0.85.
Original price = 60.00
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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