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dezoksy [38]
3 years ago
12

How do you know if an estimate is reasonable? Explain

Mathematics
2 answers:
schepotkina [342]3 years ago
8 0
Well, you can find out if your estimate is reasonable by finding out the actual answer to see if you guessed close.
Kitty [74]3 years ago
5 0
To know if your estimate is reasonable, solve the problem without estimating and compare the original answer to what you got. If it's not close, its not a reasonable estimate.
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Alfredo tiene 36 cromos más que Iván, y si comprará 10 más , tendría el triple . ¿Cuantos cromos tiene cada uno?
ololo11 [35]

Respuesta:

Alfredo = 59 pegatinas

Ivan = 23 pegatinas

Explicación paso a paso:

Dejar :

Pegatinas de Alfred = a

Pegatinas de Ivan = b

a = b + 36 - - - (1)

a + 10 = 3b- - - (11)

De 1)

a = b + 36

Ponga a = b + 36 en (11)

b + 36 + 10 = 3b

b + 46 = 3b

46 = 3b - b

46 = 2b

b = 23

a = b + 36

a = 23 + 36

a = 59

Alfredo = 59 pegatinas

Ivan = 23 pegatinas

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3 years ago
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sammy [17]

Answer:

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Step-by-step explanation:

The two tangents to a circle from the same point are the same length.

  SD = SG

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  9 = x . . . . . . . . . . divide by 3

SG = 8x -9 = 8·9 -9

SG = 63

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