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Andre45 [30]
2 years ago
15

Questão 02 - Carlos e sua mãe têm juntos atualmente 47 anos. Sabendo que sua mãe ganhou Carlos aos 23 anos, a equação que repres

enta a soma da idade de Carlos com sua mãe é: * (A) 2x = 47. (B) x + 23 = 47. (C) 2x + 47 = 23. (D) x + 2 = 23. (E) 2x + 23 = 47
Mathematics
1 answer:
mariarad [96]2 years ago
8 0

Answer:

x+23 = 47

Step-by-step explanation:

Let age of Carlos is x. It is mentioned that the sum of age of Carlos and his mother is 47 years old. Age of Carlos is 23.

We need to find the equation that represents the sum of Carlos' age with his mother.

x+23 = 47 is the required equation.

Also, we can find the age of Carlos as :

x = 47 - 23

= 24 years

Hence, the correct option is (B).

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Answer:

The number '1' is called the 'multiplicative identity' of a number '-12/13' because it does not change the number '-12/13' after getting multiplied by it.

Therefore, option (B) is true.

Step-by-step explanation:

We know that when a number let say 'n' get multiplied by '1', it remains unchanged.

i.e.

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The number '1' is called the 'multiplicative identity' of a number 'n' because it does not change the number 'n' after getting multiplied by it.

Given the number

-12/13

Multiply the number '-12/13' by '1'.

i.e.

-12/13 × 1 = -12/13

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Thus, the number '1' is called the 'multiplicative identity' of a number '-12/13' because it does not change the number '-12/13' after getting multiplied by it.

Therefore, option (B) is true.

5 0
3 years ago
A train is moving at a uniform speed of 68 km per hour. How far will it go in 15<br>minutes?<br>​
o-na [289]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
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What is the distance between points P begin ordered triple (-2,1,3) end ordered triple and Q begin ordered triple -(1,4,-2) end
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Ilia_Sergeevich [38]

Answer:

see explanation

Step-by-step explanation:

The directed lines have the form < x, y >

With the usual notation

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malfutka [58]

Answer:

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