Ryan sold half of his comic books and then bought sixteen more. He now has 36. How many comic books did Ryan start with?

Answer 1

Ryan started with #40# comic books.

First off, we need to create an equation.

Let #n=# unknown amount of books

So

#n/2 + 16 = 36#
#n/2 + 16 -16 = 36 -16#
#n/2 = 20#
#n/2 xx 2 = 20 xx2#
#n = 40#
The answer is, therefore, #40#.
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Answer 2

Ryan started with 56 comic books.

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Answer from HIX Tutor

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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