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MAXImum [283]
4 years ago
7

Ou are mailing a package that weighs 5 pounds, and sending it first class. The post office charges $0.44 for the first ounce, an

d charges $0.20 for each additional ounce. How much is the total cost to mail this package?
Mathematics
1 answer:
Inga [223]4 years ago
3 0
5 pounds= 80 ounces
total cost= ($0.44×1)+($0.20×79)=$16.24
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THE ANSWER:

c−ab=de

THIS IS WHY:

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3 years ago
Al sumar y/o restar números decimales, siempre se debe aplicar la norma de los signos. * 1 punto FALSO VERDADERO
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Answer:

La norma de los signos es para el producto de números reales, y la norma es la siguiente.

(+)*(+) = (+)

(+)*(-) = (-)

(-)*(+) = (-)

(-)*(-) = (+)

Es decir, el producto de dos números de mismo signo es siempre positivo

El producto de dos números de distinto signo es siempre negativo.

Particularmente, para la suma esta norma no funciona (pues no está definida para la suma)

Pero en casos como:

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(esto sería: "la diferencia entre cinco y menos cuatro")

notar que podemos reescribir esto como:

5 + (-1)*(-4)

Ahora podemos aplicar la norma de los signos:

5 + 4 = 9

Donde aplicamos la norma de los signos,  

Podemos concluir que, si bien es una regla que aplica al producto, siempre la tenemos que tener en cuenta en cualquier operación que hagamos.

Por lo podemos concluir que la respuesta correcta es verdadero.

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3 years ago
Solve the inequality and enter your solution as an inequality in the box below.
PSYCHO15rus [73]

Answer:

x > -10

Step-by-step explanation:

2 + x > -8

x > -8 - 2

x > -10

8 0
2 years ago
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LUCKY_DIMON [66]
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y+y+60=180

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therefore,y=60

7 0
3 years ago
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