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Luda [366]
3 years ago
6

Una clase de 32 se dividen para ir al cine y el otro grupo a la piscina. Si la entrada de la piscina cuesta 2,5 euros y la del c

ine 3,5 euros y se han gastado un total de 94 euros, ¿cuantos niños componían cada grupo?.
Mathematics
1 answer:
AveGali [126]3 years ago
7 0

Answer:

14 children went to the movies and 18 went to the pool.

14 niños en el grupo del cine y 18 en el grupo de la piscina.

Step-by-step explanation:

We can solve this question using a system of equations.

I am going to say that:

x is the number of children that went to the movies.

y is the number of children that went to the pool.

Class of 32:

This means that x + y = 32

To go to the pool, it costs 2.5 euros. To go the movies, it costs 3.5 euros. 94 euros were spent.

This means that 3.5x + 2.5y = 94

From the first equation:

y = 32 - x

Replacing in the second

3.5x + 2.5y = 94

3.5x + 2.5(32 - x) = 94

3.5x + 80 - 2.5x = 94

x = 14

y = 32 - x = 32 - 14 = 18

14 children went to the movies and 18 went to the pool.

14 niños en el grupo del cine y 18 en el grupo de la piscina.

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