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Dima020 [189]
3 years ago
8

Write the equation of the line in slope-intercept that has passes through the points and (4, -8). (-3, 27) ​

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
4 0

Answer:

It's y = -5x + 12 and/or 5x + y = 12

Step-by-step explanation:

(x,y) is really helpful

*I believe that I'm correct, but I would recommend a quick double-check (just like any other math-related question)

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During the first four months of the year, Jack earned $1270, $1150, $870 and $1450 If Jack must have an average salary of at lea
tia_tia [17]

Answer:

1010

Step-by-step explanation:

There are a whole class of questions that rely on the method to this one.

First add up what you know

1270 + 1150 + 870 + 1450 = 4740

Now add on the 5th month (which you don't know. Call it x)

4740 + x

Divide by 5

(4740 + x)/5 = 1150 and that is your equation    

Solution

Multiply both sides by 5

5*(4740 + x) / 5 = 1150 * 5

4740 + x = 5750

Subtract 4740 from both sides

4740 - 4740 + x = 5750 - 4740

x = 1010

Which seems kind of low, but that's what the numbers come to.

6 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Butoxors [25]

The mean of a dataset is simply the sum of the elements, divided by how many elements you have.

In your case, you have a dataset of 10 elements, so we will divide by 10.

The sum of the elements is

5+8+9+11+7+7+8+9+12+7=83

Which implies that the average is

\dfrac{83}{10}=8.3

Which should be approximated to 8.

7 0
3 years ago
Read 2 more answers
HELP ME PLEASE!
mixer [17]

Answer:

I'm sorry I didn't understand so can u plz

7 0
3 years ago
Read 2 more answers
Evaluate 5+6x,when x is 4
marin [14]
Answer:
29

Hope this helps!
6 0
3 years ago
Read 2 more answers
Dos hombres pueden hacer un trabajo en 12 días trabajando juntos. Si a B le toma 10 días más que a A hacer el trabajo solo, dete
pychu [463]

Responder:

El tiempo que toma A para completar el trabajo solo es de 20 días.

Explicación paso a paso:

datos proporcionados:

Tiempo que tarda (A + B) en terminar el trabajo = 12 days.

Deje que A A le tome tiempo completar el trabajo solo = x

entonces el tiempo que B tomó para completar el trabajo solo = x+10

1 día de trabajo de A + B = \frac{1}{12}

1 día de trabajo de A = \frac{1}{x}

1 día de trabajo de B = \frac{1}{x+10}

1 día de trabajo de A = {(

1 día de trabajo de A + B} - {1 día de trabajo de B}

\frac{1}{x} =((\frac{1}{12})-(\frac{1}{x+10}))

Resolviendo la ecuación que obtenemos.

\frac{1}{x} =((\frac{x+10}{12(x+10)})-(\frac{1\times12}{12(x+10)}))

\frac{1}{x} =(\frac{x+10-12}{12x+120})

\frac{1}{x} =(\frac{x-2}{12x+120})

12x+120=x(x-2)

12x+120=x^2-2x

x^2-2x-12x-120=0

x^2-14x-120=0

x^2+6x-20x-120=0

x(x-6)-20(x-6)=0

(x-20)(x+6)=0

Ahora resolviendo 2 valores de x obtenemos

x-20=0\\x=20

x+6 =0\\x =-6

El número de días no puede ser negativo, por lo tanto, x = -6 no es válido

por lo tanto, el número de días que A puede completar el trabajo solo es de 20 días

3 0
3 years ago
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