2(x - 4) = 7 - 3x pls help plss

Answer:

40-15x=18

Step-by-step explanation:

Multiply both sides of 2 - 3/4x = 9/10 by twenty to get

20*2 - 20*3/4*x = 20*9/10

which is 40 - 15x = 18

This should be as far as you need to go, but incase you need to go further,

subtract 40 to both sides

multiply both sides by -1 to get rid of the negatives infront of the x

then divide both sides by 15 to get

x=22/15

and yes, when you solve for x, it is a fraction, but just incase if its needed, I included it. Hope this helps in the future! Let me know if any more questions you have on this problem.

Answer:

Answer: 3^-2

Step-by-step explanation:

[tex]( \frac{1}{3} ) {}^{2} \\ \\ = \frac{ {1}^{2} }{ {3}^{2} } \\ \\ = {3}^{ - 2} [/tex]

Answer:

[tex]\frac{1}{9}[/tex]

Step-by-step explanation:

Evaluate the power

[tex]\frac{1^2}{3^2}[/tex]

Divide

[tex]\frac{1}{9}[/tex]

Answer:

It will take her 11 weeks to save for the bike

Step-by-step explanation:

261 -107 = 154

154 /14=11

Answer:

the answer of the following question is d

Answer:

a) 1200

b) 75

Step-by-step explanation:

Step-by-step explanation:

[tex]3(2x - 5) = 6(x + 3)[/tex]

[tex]6x - 15 = 6(x + 3)[/tex]

[tex]6x - 15 = 6x + 18[/tex]

[tex] - 15 = 18[/tex]

[tex] = x∈\O[/tex]

Answer:

B' = {1, 3, 5, 6, 7}

Step-by-step explanation:

U = {1, 2, 3, 4, 5, 6, 7, 8}

B = {2, 4, 8}

So the complement  ( the set of elements in U but not in B) is:

B' = {1, 3, 5,  6, 7}

Answer:

3-$570

4-$270

5-7 months

6-$1080

Answer:

2 acute and 1 right

Step-by-step explanation:

because in a right triangle theres two acute angle and 1 right

Answer:

Ratio should be equal so ratio is 3:3

The ratio of the triangles to circles in the diagram below would be; 1: 1

Suppose that we've got two quantities with measurements as 'a' and 'b'

Then, their ratio(ratio of a to b) a:b We usually cancel out the common factors from both the numerator and the denominator of the fraction we obtained.

Thus, there are three circles and three triangles shown in the figure.

Therefore, the ratio will be;

three circles: three triangle

3 : 3

1: 1

Hence, the ratio of the triangles to circles in the diagram below would be; 1: 1

Learn more about ratios here:

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Answer:

142 is the answer of this your homework

The answer is 624,151

Sorry if I'm wrong

Answer:

True

Step-by-step explanation:

It is true because when you first do 6.50 times 5 you would get 32.50 then after you do that you add 14.50 which would get you to $47 which is under $50!

Hope this helps :D

Answer:

Step-by-step explanation:

[tex] \frac{1}{7} \times x = 1[/tex]

[tex]7 \times \frac{1}{7} x = 7 \times 1[/tex]

[tex]7 \times \frac{1}{7} x = 7[/tex]

[tex]\boxed{\green{x = 7}}[/tex]

◇◇•◇◇

[tex]x \times \frac{1}{11} = 1[/tex]

[tex] \frac{1}{11} x = 1[/tex]

[tex]11 \times \frac{1}{11} x = 11 \times 1[/tex]

[tex]11 \times \frac{1}{11} x = 11[/tex]

[tex]\boxed{\green{x = 11}}[/tex]

♤♤•♤♤

[tex]1 \div \frac{1}{5} = 1 \times \frac{5}{1} [/tex]

[tex]1 \times 5[/tex]

[tex] \boxed{\green{= 5}}[/tex]

Answer:

x=37°

Step-by-step explanation:

2x°=74° (vertically opposite angles)

2x°/2=74°/2

x=37°

74° = 2x°

2x° = 74°

x° = 74° : 2

x° = 37°

Answer:

Wilbur Wright was 36 and his brother Orville was 32 in 1903

Answer: $7

Step-by-step explanation:

R = Revenue = $160

$160 = 30A - 50

(+50) (+50)

210 = 30A

(÷30) (÷30)

$7 = A

Answer:

y is the dependent variable and x is the independent variable

Step-by-step explanation

The number on the right of the equal sign is always the independent variable and the number on the left is always the dependent variable.

independent variable = dependent variable +5

Answer:

When we draw the angle in what is known as standard position, we put its vertex at the origin, and we draw the initial side of the angle along the positive horizontal axis. ... The amount of that rotation corresponds to the measure of the angle.

Step-by-step explanation:

i think the answer _ 2/60

Answer:

Step-by-step explanation:

2)

80 +67 +97+ 98 +85 +72 = 499

499/6=83.1666666667

Average: 83.1666666667

3)

a) 97 93 92 90 90 90 86 =90

median of Edgars grades for his midterm is 90

99 93 93 89 88 88 86

median of Edgars grades for his trimester is 89

7)

(z+9+18)= z+27 (remember don't mix the numbers if they are attached to the x)

(z+18+9)= z+27 (because adding is both ways the same)

a) a + b =b + a

Geometry

1.

a) 6x^2

b)The surface area of a cube = 6a^2 where a is the length of the side of each edge of the cube. Put another way, since all sides of a cube are equal, x is just the length of one side of a cube

c) The unit would be sq(squared) feet

Answer:

[tex]m^2 +13m-36[/tex] does not factor.

Explanation:

[tex]m^2 +13m-36[/tex] is not factorable with rational numbers.

Answer:y =-3x/4+2

Step-by-step explanation:

Slope= -3/4

The line is passing through (0,2).

y-2=(x-0)*-3/4

or

y =-3x/4+2

Answer:

9 test

Step-by-step explanation:

There should be 9 administrators chosen.

A proportion is a comparison of two numbers that each represent the parts of a whole.

Given that, A supervisor wants to know the average number of hours worked by employees in a factory. There are 18 managers, 240 labourers, and 54 administrators. Three managers are chosen to participate in the survey.

Since, the manager chosen 3 out of 18 managers, hence, the proportion is 1 to 6 persons,

Therefore, when he is choosing administrators, 54/6 = 9

Hence, there should be 9 administrators chosen.

For more references on proportion, click;

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El área del triángulo es de 24.5 unidades cuadradas.

En este problema, procedemos a resumir el procedimiento como sigue:

1) Calculamos las longitudes de los segmentos de línea AB, BC y AC por medio de la ecuación de longitud del segmento de línea.

2) Determinamos el semiperímetro del triángulo.

3) Determinamos el área del triángulo mediante la fórmula de Herón.

Si tenemos que [tex]A(x,y) = (-3, 4)[/tex], [tex]B(x,y) = (4, 4)[/tex] and [tex]C(x,y) = (4, - 3)[/tex], entonces aplicamos el procedimiento como sigue:

Paso 1 - Longitudes de segmentos línea

Segmento AB

[tex]l_{AB} = \sqrt{[4-(-3)]^{2}+(4-4)^{2}}[/tex]

[tex]l_{AB} = 7[/tex]

Segmento BC

[tex]l_{BC} = \sqrt{(4-4)^{2}+[(-3)-4]^{2}}[/tex]

[tex]l_{BC} = 7[/tex]

Segmento AC

[tex]l_{AC} = \sqrt{[4-(-3)]^{2}+(-3-4)^{2}}[/tex]

[tex]l_{AC} = 7\sqrt{2}[/tex]

Paso 2 - Cálculo del semiparámetro

[tex]s = \frac{l_{AB}+l_{BC}+l_{AC}}{2}[/tex]

[tex]s = \frac{14+7\sqrt{2}}{2}[/tex]

[tex]s = 7 + \frac{7\sqrt{2}}{2}[/tex]

Paso 3 - Cálculo del área del triángulo

[tex]A = \sqrt{s\cdot (s-l_{AB})\cdot (s-l_{BC})\cdot (s-l_{AC})}[/tex]

[tex]A = 24.5[/tex]

El área del triángulo es de 24.5 unidades cuadradas.

Invitamos cordialmente a ver esta pregunta sobre áreas de triángulos: https://brainly.com/question/21677292