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love history [14]
3 years ago
10

Paul, Brendan, and Charlie are chopping wood. It would take Paul 10 hours to chop up one cord of firewood. It would take Brendan

12 hours to chop one cord, and it would take Charlie 15 hours to do the same job by himself. How long will it take the three of them working together?
It will take blank hours for the three boys to chop up one cord of firewood.

The solution is
Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0

Answer: It will take the 4 hours

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Which equation is equivalent to 2x + 6y = 12?
vlada-n [284]
2x + 6y = 12
6y = -2x + 12
y = -2x/6 + 12/6
y = -1/3 x + 2
7 0
3 years ago
Read 2 more answers
Rodney had 7 toffees MORE than Micah. Micah’s father then gave him 2 more toffees. How many toffees more than Micah would Rodney
WARRIOR [948]

Answer:

Rodney will have 9 toffees more than Micah.

Step-by-step explanation:

Let the numbr of toffee Micah have = x

So, the number of toffee Rodney have = x + 7.

Since, Micah's father gave him 2 more toffees.

Then, number of toffee Micah now have = x + 2

<em>So, number of toffees Rodney will have = (x+7) + 2 = x + 9.</em>

Hence, Rodney will have 9 toffees more than Micah.

5 0
3 years ago
If g( n ) = 3 n - 2, then what is the value of g(10)?
Paul [167]
The correct answer is 28
6 0
4 years ago
.Un recipiente cilíndrico de 5cm de radio y 10cm de altura se llena de agua. Si la masa del recipiente lleno es de 2kg, ¿cuál es
Lera25 [3.4K]

Answer:

La masa del recipiente vacío es 1,2146 kg.

Step-by-step explanation:

La densidad se define como la propiedad que tiene la materia, ya sean sólidos, líquidos o gases, para comprimirse en un espacio determinado. En otras palabras, la densidad es una magnitud que permite medir la cantidad de masa que hay en determinado volumen de una sustancia. Entonces, la expresión para el cálculo de la densidad es el cociente entre la masa de un cuerpo y el volumen que ocupa:

densidad= \frac{masa}{volumen}

Entonces la masa puede ser expresada como:

masa= densidad*volumen

En este caso:

  • densidad del agua= 1000 \frac{kg}{m^{3} }
  • volumen del recipiente cilíndrico= π*radio²*altura= π*(5 cm)²* 10 cm= π*(0,05 m)²*0,1 m= 7,854*10⁻⁴ m³

Reemplazando:

masa= 1000 \frac{kg}{m^{3} } * 7,854*10⁻⁴ m³

masa=0.7854 kg

Si la masa del recipiente lleno es de 2 kg, entonces se le resta la masa de agua calculada:

2 kg - 0,7854 kg= 1,2146 kg

Entonces,<u><em> la masa del recipiente vacío es 1,2146 kg.</em></u>

<u><em> </em></u>

<u><em></em></u>

8 0
3 years ago
6. Parker, Inc. used Excel to run a least-squares regression analysis, which resulted in the following output: Regression Statis
aleksley [76]

Answer:

"34,814" is the correct solution.

Step-by-step explanation:

The given values are:

Intercept coefficient,

\beta_0 = 23,859

Production coefficient,

\beta_1 = 3.13

Units sold,

x = 3,500

Now,

The total cost will be:

⇒  \bar{y}=\beta_0+\beta_1 x

On substituting the estimated values, we get

⇒     =23,859+3.13\times 3,500

⇒     =23,859+10,955

⇒     =34,814

4 0
3 years ago
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