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sweet [91]
3 years ago
8

What is the product of 7.5 and 1000

Mathematics
2 answers:
madam [21]3 years ago
5 0

Answer:

7500 is the answer

Step-by-step explanation:

Product means a quantity obtained by multiplying quantities together, so if you multiply 7.5 and 1000 you get that answer :)


vekshin13 years ago
5 0

Answer:

7500

Step-by-step explanation:

1000

x7.5

when you multiply 10, 100, ect you move the decimal point to the right the same number of places as the number of zeros as the power of 10.\

This will be to the second power so it wil be 7500

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3 years ago
Ana ha comprado libros, todos del mismo precio, por valor de 120 euros. El librero le regala 3 libros por lo que cada libro le c
lidiya [134]

Answer:

El primer paso será darle un nombre a nuestras variables:

x= Numero de libros comprados inicialmente

y=Precio inicial de los libros

Ahora analizamos el enunciado,

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x*y=120 € (1)

El librero le regala 3 libros por lo que en realidad cada libro que cuesta 2 € menos

(x+3)(y-2)=120€ (2)

Tenemos entonces dos ecuaciones con dos incógnitas, así que podemos resolver,

Despejamos en (1)

x=120/y

Sustituimos en (2)

(120/y +3)(y-2)=120

120 - 240/y + 3y -6 =120

3y-240/y =120-120+6

3y -240/y =6

y- 80/y=6

y²-80=6y

y²-6y-80=0

Resolvemos la ecuación de segundo grado

a=1

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Aplicando la resolvente,

(6+- √36+320)/2

6+-√356/2

(6+-18,86)/2

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y=12,43

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x=9,65 como no puede ser un número racional

x=9

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3 years ago
Find c to complete the perfect trinomial<br><br> x2 + 4x + c
sladkih [1.3K]

Answer:

4

Step-by-step explanation:

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8 0
3 years ago
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