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Effectus [21]
3 years ago
14

Simplfy 2x+4/-3 = 12

Mathematics
1 answer:
nasty-shy [4]3 years ago
4 0
So you have the equation (2x+4)/-3=12
Multiply by -3 on each side. 
2x+4=-36
2x=-20
x=-10
Hope this helps.
You might be interested in
In a bag of apples, the ratio of red apples to green apples is 3:4. If the bag contains 60 red apples, how many green apples are
alekssr [168]
Hi there! The answer is 80 green apples.

In a bag of apples, the ratio of red apples to green apples is 3:4, so we must first realise that there is a total of 7 parts.

3 of these parts constist if red apples. In other terms 3 / 7 equals 60. Now divide by 3 to find 1 / 7. Hence, 1 / 7 equals 60 / 3 = 20 apples.

4 of the total 7 parts consist of green apples, so we must multiply the preceding outcome by 4 to find our answer. 4 / 7 equals 20 × 4 = 80 apples.

Therefore, there are 80 green apples in the bag.
~ Hope this helps you!
6 0
3 years ago
Sandra y Roberto, cada uno de ellos con una copia del libro, deciden que ellos pueden ganar tiempo "leyendo en equipo" la novela
yawa3891 [41]

Answer:

La última página que Sandra deberá leer es la página 380.

Step-by-step explanation:

Sandra y Roberto tienen un libro de 760 páginas y se lo dividen, la pregunta es ¿Cuál es la última página que debería leer Sandra de tal manera que ella y Roberto pasen la misma cantidad de tiempo leyendo la novela?

Para que ambos pasen la misma cantidad de tiempo leyendo la novela, tendrían que dividirse el libro a la mitad, por lo que cada uno debería leer 760 ÷ 2 = 380 páginas.

Por lo que Sandra deberá leer de la página 1 a la 380 y Roberto leerá de la 381 a la 760.

Por lo tanto, la última página que Sandra deberá leer es la página 380.

6 0
3 years ago
F(x)=x 3−9xf, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 9, x What is the average rate of change of f over
mel-nik [20]

Answer:

A(x) = 243

Step-by-step explanation:

Given

f(x) = x^3 - 9x

Interval: (12,6)

Required

Determine the average rate of change

Average rate is calculated as thus;

A(x) = \frac{f(b) - f(a)}{b - a}

<em>In this case; b = 12 and a = 6</em>

Calculating f(12)

f(12) = 12^3 - 9 * 12

f(12) = 1728 - 108

f(12) = 1620

Calculating f(6)

f(6) = 6^3 - 9 * 6

f(6) = 216 - 54

f(6) = 162

Substitute 12 for b and 6 for a in A(x) = \frac{f(b) - f(a)}{b - a}

A(x) = \frac{f(12) - f(6)}{12 - 6}

Substitute values for f(6) and f(12)

A(x) = \frac{1620 - 162}{12 - 6}

A(x) = \frac{1458}{ 6}

A(x) = 243

4 0
3 years ago
What is a good way to solve division problems?
I am Lyosha [343]

Solution

To solve division problems you can make equal groups

Example

\frac{8}{2}

It is

\frac{8}{2}=4

8 0
1 year ago
Alice rolls a fair dice and flips a fair coin. What is the probability of obtaining a factor of 12 and a tail?
Semenov [28]

Answer:

5/12

Step-by-step explanation:

4 0
3 years ago
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