5(3x + 1) = 20 + 15(x - 1

Answer:

a) 16-x=x+4

add x to both sides

16=2x+4

subtract 4 from both sides

12=2x

divide both sides by 2

x=6

b) (8-x)-5=2

add 5 to both sides

8-x=7

add x to both sides

8=7+x

subtract 7 from both sides

x=1

c) 4+x=x+4

subtract 4 from both sides

x=x

x belongs to all real numbers.

Answer:

A) 16-x=x+4

       +x +x

-----------------

16=2x+4

-4       -4

--------------

12=2x

---- ---

2     2

x=6

D)6 (x=6)

B) (8-x)-5=2

8-x-5=2

Combine like terms (8-5)

3-x=2

-3   -3

-----------

-1x=-1

--    --

-1     -1

B=1

x-1 so your answer is 1

C) 4+x=4+x

From telling there is going to be no solution but still solve it

4+x=4+x

-4    -4

---------------

0+x=x

  -x   -x

--------------

0=0x

--   ---

0    0

B is your answer (X=0)

Hope this helped :D

Answer:

12

Step-by-step explanation:

This is easy. Select different values for x to find y values.

For example, let x = 0.

y = 8x + 12

y = 8(0) + 12

y = 0 + 12

y = 12

On your table, you have x = 0 and y = 12.

Do the same using other values of x.

Answer:

3x2+6x is a polynomial. Polynomials are algebraic expressions in which the variables have only non-negative integer powers. For example,: 5x2 - x + 1 is a polynomial.

Answer:

??????

Step-by-step explanation:

Saan po jan sasagutan

Answer:

i think ur on the right path

Step-by-step explanation:

if it is looking for the percent it would be 23%

Answer:

60%    

Step-by-step explanation:

number well done/total burgers cooked ×100

45/75 × 100

4500/7500

60%    

Check: Total  ×  60%  = 75 ×.60 = 45 well done

Answer:

[tex]10x + 2y = 2 \\ 2y = - 10x + 2 \\ y = - 5x + 1 \\ \perp \: l \rightarrow\: m = \frac{1}{5} \\ \frac{8 + 7}{1 + 2} = \frac{15}{3} = 5 \\ \frac{4 - 5}{0 + 5} = - \frac{1}{5} \\ \frac{ - 8 + 9}{5 - 0} = \color{yellow} \frac{1}{5} \: [/tex]

so the answer is C

you may check the rest...

Answer:

Step-by-step explanation:

Dilation of a line about a point not on the line shifts the line but leaves the slope intact .

New line slope will be -2

As both A and C lie on a horizontal line y = 2, C' will also lie on the same line

The distance between A and C is 0 - 2 = -2

a scale factor of 3 means C' is -2(3) = -6 units left of A

C' = (2 - 6, 2) = (-4. 2)

Answer:

[tex]i)a + 2b = 2 + 2(3) = 2 + 6 = 8 \\ ii)a + b + c = 2 + 3 + 3 = 2 + 6 = 8[/tex]

Answer:

a = 2, b = 3 and c = 3

a + 2b

2 + 2(3) = 2 + 6 = 8

a + b + c

2 + 3 + 3 = 8

Thus, The answer of i.) is 8 and ii.) is 8

-TheUnknownScientist 72

Answer:

is this free choice?

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

Since A=pi x r2 There is a proportional relationship .

Answer:

he traveled 9Km

Step-by-step explanation:1.5 x 6

Answer:

278/1

Step-by-step explanation:

The question is kind of unclear... though this is 80+198 simplified.

Hope this helped! :)

Answer:

Solve equation [2] for the variable y

[2] y = -2x + 1

// Plug this in for variable y in equation [1]

[1] (-2x+1) + 4x = -3

[1] 2x = -4

// Solve equation [1] for the variable x

[1] 2x = - 4

[1] x = - 2

// By now we know this much :

y = -2x+1

x = -2

// Use the x value to solve for y

y = -2(-2)+1 = 5

Solution :

{y,x} = {5,-2}

Answer:

this is the answer....

Answer:

x - (5 -sqrt149 ) / 4  and x-  (sqrt149+5)/4   = = x - -4.3016389  and x - 4.3016389

Step-by-step explanation:

1/2 x-5(x-1/3)=5/4 x+3 = ( 1/2x^2-5x -1/6x -5/3)  = (5/4x+3)  = ( 1/2x^2-6 5/6)  = (5/4x+3)  convert 5/4 to  12ths = *3 =  15/12  and 5/6 * 2 = 10/12 =  ( 1/2x^2-6 10/12)  = (15/12x+3)  = 1/2 x^2 - 15/12x -6 10/12 - 3 = 0   = 1/2 x^2 - 15/12x -3 10/12 = 0 then multiply by 2 to make 1/2 whole 1/2 x^2  (2)- 15/12x (2) -3 10/12 (2) = 0 =  x^2 - 30 /12x -6 20/12 (2) = 0  simplify irregular fraction  x^2 - 2 2/4x  -7 3/4  = 0  then do the abc quadratic formula = x - (5 -sqrt149 ) / 4  and x-  (sqrt149+5)/4   =  x-  -17.2065556/4   = x - -4.3016389    and 17.2065556/4 =x - 4.3016389

Answer:

y=-3x+18

Step-by-step explanation:

since they gave us two points, we can find the slope: (y_2 - y_1)/(x_2 - x_1) -> (6-3)/(4-5)=(3)/(-1)=-3 so the slope is -3. now we have [tex]y=-3x+b[/tex]. next we have to find b. to do this just plug a point into the equation: 3= -3*5 +b, 3=-15+b, b=18. so now we have y=-3x+18

Answer:

[tex]\frac{9}{64}[/tex]

Answer:

Step-by-step explanation:

    15d = -105

15d/15 = -105/15

        d = -7

15d = -105

d = -105/15

d = -7

____

RainbowSalt2222 ☔

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Answer:

I need to know more info srry

Step-by-step explanation:

Answer:

95.80

Step-by-step explanation:

hope I helped BESTIEE

Answer:

Step-by-step explanation:

23/24 as a decimal is 0.95833333333333.

Answer:

Ф = 19.80 °

Step-by-step explanation:

by using pythagoras theorem

h² = p² + b²

13² = 5² + b ²

b = √194

b = 13.93

now

tanФ  = p/b

Ф = tan¬1( 5 / 13.93)

Ф = 19.80 °

ATQ

[tex]\\ \sf\longmapsto R+B+G=10[/tex]

[tex]\\ \sf\longmapsto 6+2+2=10[/tex]

[tex]\\ \sf\longmapsto 4+1+1=5[/tex]

Now

Two of same colour so we need P(R')

[tex]\\ \sf\longmapsto P(R')=\dfrac{|R|}{|S|}[/tex]

[tex]\\ \sf\longmapsto \dfrac{4}{10}[/tex]

[tex]\\ \sf\longmapsto 0.4[/tex]

Answer:

- Alejandra esperó el autobús el martes pasado.

- El martes pasado Alejandra esperó el autobús

Step-by-step explanation:

Answer: - Alejandra esperó el autobús el martes pasado.

Step-by-step explanation:

9514 1404 393

Answer:

   The decimal point moves 4 places to the right

Step-by-step explanation:

Take a simple case using the whole number 3.

  3.    —   whole number we're starting with

  3.×10^4 = 3.×10,000 = 30,000.   —   multiplied by 10^4

The decimal point moves 4 places to the right.

_____

Additional comment

Multiplying be a positive power of 10 moves the decimal point a number of places equal to that power. Effectively, the number of zeros added on the right is equal to the power of 10. Above, you will notice multiplying by 10^4 added 4 zeros to the right of the number.

Answer:

empty set

Step-by-step explanation:

Answer: { } or empty set

the choses are:

{ } or empty set

{ infinite set of points on like}

{ point in quadrant I }

Answer:

[tex] < 1 = 112 \degree\\ < 2 = 68 \degree \: \\ < 3 = 112 \degree[/tex]

Step-by-step explanation:

As the vertically opposite angles are equal,

[tex]x = < 2 \\ x = 68 \\ so \\ < 2 = 68 \degree[/tex]

As the angles in a straight line is added up to 180°

[tex] < 1 + < 2 = 180 \\ < 1 + 68 = 180 \\ < 1 = 112 \degree[/tex]

Also,

[tex] < 2 + < 3 = 180 \\ 68 + < 3 = 180 \\ < 3 = 112 \degree[/tex]

Hope this helps you.

Let me know if you have any other questions:-)

Answer:

53

Step-by-step explanation:

The solution of expression 159 divided by 3 is, 53

The given numbers to divide are,

⇒ 159 divided by 3

Let us assume that, a is divided by b,

Then, it ca be written as,

⇒ a / b

Hence, We can write as,

⇒ 159 / 3

3 ) 159 ( 53

  - 15

------------

      09

     - 09

     ---------

        00

Therefore, The solution of expression 159 divided by 3 is, 53

Learn more about the divide visit:

brainly.com/question/28119824

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