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xxMikexx [17]
3 years ago
13

Responde el siguiente problema de lógica: Al mirar el reloj, vemos que la manecilla de los minutos apunta a un número que casual

mente es igual a la cantidad de minutos que falta para que sean las 12 en punto. Que hora es? Porfavor ayudenme
Mathematics
1 answer:
ANTONII [103]3 years ago
8 0

Answer: 11:50

Step-by-step explanation:

Ok, la manecilla de los minutos apunta al numero X.

si la ora es Y, entonces Y + X = 12:00

podemos asumir que Y es 11:y

y es la cantidad de minutos despues de las 11, es un numero entre 0 y 59 (por que una hora solo puede tener 60 minutos)

Si la manecilla de los minutos apunta al numero 6 por ejemplo, entoces:

y = 11:30 y X = 6 min

X + y = 11:30 + 0:06 = 11:36

Así funciona.

la equacion es:

y = 5*X

y tambien queremos que:

X + y = 60min

reemplazo y por lo de la equacion de arriba:

X + y = X + 5*X = 6X = 60min

X = 10

Si la manecilla apunta al 10, tenemos que:

y = 11:50 y X = 10min

y + X = 11:50 + 0:10 = 12:00

Entonces podemos concluir que la hora es 11:50.

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Step-by-step explanation:

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Rename 2/5 as a percent_______________________
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It can be helpful to remember that "%" is just a shorthand way to write "/100" (divided by 100, or per 100, or per cent). ("Cent" is often used to refer to 100 or 1/100. A "cent" is 1/100 of a dollar, or 1/100 of an acre, for example. A <em>cent</em>ury is 100 years.)

Make the denominator of your fraction be 100. Multiply numerator and denominator by 20/20.

(2/5)×(20/20) = 40/100 = 40%

You can also get there via decimals.

... 2/5 = 0.4 = 0.40 (40 hundredths) = 40/100 (40 hundredths) = 40%

Or, you can multiply by 100%.

... (2/5)×(100%) = (200/5)% = 40%

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