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Margarita [4]
3 years ago
9

Huong is organizing paperback and hardback books for her club’s used book sale. The number of paperbacks is 12 less than three t

imes the number of hardbacks. Huong had 162 paperbacks. How many hardback books were there?
Mathematics
1 answer:
trasher [3.6K]3 years ago
4 0

Answer:

There were 58 hardback books there.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the number of paperback books.

y is the number of hardback books.

The number of paperbacks is 12 less than three times the number of hardbacks.

This means that:

x = 3y - 12

Huong had 162 paperbacks.

This means that x = 162

How many hardback books were there?

We want to find y.

So, using the value of x, and the first equation, we have that:

x = 3y - 12

3y = x + 12

3y = 162 + 12

3y = 174

y = \frac{174}{3}

y = 58

There were 58 hardback books there.

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