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Kryger [21]
3 years ago
12

What us 1/10 of 3,000

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
5 0

1/10 of 3,000 is 300. Just divide by 10 to get the answer

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What is 12 times 23 PLS HELP ME MY SISTER WONT SYTOP ASKING AND IM IN THE MIDDLE OF A LESSON!!!!!!
Firdavs [7]

Answer:

12 times 23 is 276

Step-by-step explanation:

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3 years ago
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a particular ball always bounce back to 3/4 of its height of ots previous bounce after being dropped. after the first bounce it
Tanya [424]

The ball will reach a height of 21.9375 inches after its fourth bounce.

  • Each time the ball lands on the ground, energy is lost. The ball deforms on each hit, and part of the kinetic energy is transferred to heat. After each bounce, the ball will become a little bit hotter. When the ball strikes the ground, it will also lose some energy as sound, although this loss will be minimal. similar to how little energy is lost by air resistance.
  • After the first bounce, the ball reaches a height of 52 inches.
  • The ball reaches (3/4) of its previous height after every bounce.
  • After the second bounce, it will reach a height of (3/4) x 52.
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  • After the fourth bounce, it will reach a height of (3/4) x (3/4) x (3/4) x 52.
  • The height the ball will reach after its fourth bounce is equal to 21.9375 inches.

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3 0
2 years ago
Me pueden ayudar por favor?. Un electricista cobra $3 por hora de trabajo y un plomero $1,2 por hora ¿cuantas horas deberá traba
REY [17]

Answer:

El plomero debe trabajar 25 horas para ganar lo mismo que gana el electricista en 10 horas de trabajo ($30).

Step-by-step explanation:

Para esta pregunta debemos seguir los <em>siguientes pasos</em>:

  1. Determinar los datos principales del problema.
  2. Determinar lo que gana el electricista por trabajar 10 horas.
  3. Determinar las horas que debe trabajar el plomero (considerando lo que gana por hora) para ganar lo mismo que gana el electricista por las 10 horas de trabajo.

En lo siguiente emplearemos la notación USD que es equivalente a $ (USD = $).

Primer paso: datos principales del problema

  • Tenemos que un electricista cobra \\ \frac{USD\;3}{hora}.
  • El plomero cobra \\ \frac{USD\;1.2}{hora}.

Segundo paso: ¿cuánto gana el electricista por trabajar 10 horas?

En este caso, <em>multiplicamos lo que gana el electricista por hora, por las 10 horas de trabajo, </em>y obtener lo que gana en esas 10 horas.

\\ \frac{USD\;3}{hora}*10\;horas

\\ \frac{USD\;3*10\;hora}{hora}

\\ USD\;30

De esta manera, el electricista gana $30 por trabajar 10 horas.

Tercer paso: cantidad de horas que debe trabajar el plomero para ganar $30, considerando lo que gana por hora ($1,2 por hora).

Para determinar el número de horas que el plomero debe trabajar para   ganar $30, podemos escribir la siguiente ecuación:

\\ \frac{USD\;1.2}{hora}*X = USD\;30 [1]

La equación anterior nos dice: ¿qué numero de veces (X) tenemos que multiplicar lo que <em>gana el plomero por hora</em> para que gane $30 (<em>lo mismo que gana el electricista en 10 horas de trabajo</em>)? En otras palabras, la cantidad de horas que tiene que trabajar para ganar $30, considerando que gana $1,2 por hora.

De esta forma, tenemos que despejar <em>X</em> de la ecuación [1], de la siguiente manera, para luego determinar <em>el número de horas que debe trabajar</em>:

\\ \frac{USD\;1.2}{hora}*X = USD\;30

\\ X = \frac{USD\;30}{\frac{USD\;1.2}{hora}}

\\ X = \frac{30}{1.2}\frac{USD}{\frac{USD}{hora}}

\\ X = 25\;horas

Nótese que en las unidades sólo quedan las <em>horas</em> por cuanto \\ \frac{USD}{USD} = 1 y las horas que quedan en el denominador, pasan al numerador, ésto es,  \\ \frac{USD}{\frac{USD}{horas}} = USD*\frac{horas}{USD} = horas.

Por lo tanto, <em>el plomero debe trabajar </em><em>25 horas</em><em> para ganar $30</em> (lo que gana el electricista por 10 horas de trabajo).

El resultado es congruente porque la tasa que cobra por hora de trabajo es mayor para el electricista ($3 por hora) que para el plomero ($1,2 por hora).

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3 years ago
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It's 35 minutes passed
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For the data shown in the stem-and-leaf plot, what is the effect on the mean and median of adding the value 10 to the data set?
alekssr [168]
The correct answer for the question that is being presented above is this one: "<span> C. The mean is decreased by about 1.2 and the median is decreased by 2." </span>For the data shown in the stem-and-leaf plot,  the effect on the mean and median of adding the value 10 to the data set is that t<span>he mean is decreased by about 1.2 and the median is decreased by 2.</span>
5 0
4 years ago
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