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ELEN [110]
3 years ago
11

shalyn went to to the movies. She spent 2/5 of her money on a ticket and 3/7 on popcorn. How much did she spend?

Mathematics
1 answer:
adoni [48]3 years ago
8 0

Answer:

She spent 29/35 of total amount she had.

Step-by-step explanation:

Let the amount Shalyn had be x.

She spent 2/5 of her money on a ticket. (i.e 2/5 of x)

She spent 3/7 of her money on popcorn. (i.e 3/7 of x)

So we need to find the total she spent.

i.e Total amount spent =Amount spent on movie ticket + amount spent on popcorn

Total amount spent = 2/5 of x  +   3/7 of x

Total amount spent = (2/5  +  3/7 ) of x

Total amount spent = (29/35) of x

So she spent 23/35 of total amount she had.


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Answer:

a) la altura es de 1.6 metros

b) contendría 3750 litros

Step-by-step explanation:

1000 litros = 1m³

8000 litros = 8000/1000 = 8m³

La formula del volumen de un prisma rectangular es:

v = área de la base * altura

el área de la base es:

ab = 2.5m * 2m = 5m²

entonces:

v = 5 * altura

v = 8m³

así que:

8m³ = 5m²* altura

altura = 8m³/5m²

altura = 1.6 metros

  • Si la altura fuese de 75cm

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entonces:

volumen = 5m² * 0.75m

volumen = 3.75m³

3.75m³ = 3.75*1000 = 3750 litros

El agua que contendría sería de:

3750 litros

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