Help, please!!!!!!!!

Answer:

[tex]8x - 14[/tex]

Step-by-step explanation:

1. expand by distributing terms.

[tex]2 \times 4x + 2 \times - 7[/tex]

2. Simplify 2 × 4x to 8x.

[tex]8x + 2 \times - 7[/tex]

3. Simplify 2 × -7 to -14.

[tex]8x - 14[/tex]

Therefor, the answer is, 8x - 14.

Answer:12

Step-by-step explanation:

Your goal with variables should always be to isolate them.

so the first step is to subtract the 4

3x^2+4=436

       -4= -4

3x^2=432

The next step to isolate the variable x is to get rid of the 3. To get rid of the 3 you have to divide both sides by 3 since it is the opposite of multiplying.

3x^2=432

/3.    =/3

x^2=144

the last step to isolate the x is to do the opposite of what an exponent is, which is to find the square root. So when you square the x^2, the exponent cancels out.

square root of x^2=x

square root of 144=12

x=12

hope this helps!

9514 1404 393

Answer:

  £8400

Step-by-step explanation:

The amount due after t years is ...

  A = P(1 +rt)

  A = £6000(1 + 0.10·4) = £6000·1.40

  A = £8400

Chris pays back £8400 in total.

Answer:

There's no solution to this equation, when 2 equations have the same slope but different y-intercepts, they're parallel. This means they never intercept and there is NO solution and we can't solve for x.

x = width, y = length

x = 1, y = 5

x = 2, y = 10

x = 3, y = 15

x = 4, y = 20

x = 5, y = 25

Answer:

11

Step-by-step explanation:

C(4) = -7 + 6(4-1)

C(4) = -7 + 6 x 3 =

C(4) = -7 + 18

C(4) = 11

Hope that helps!

Answer:

y=6*x+101

Step-by-step explanation:

Slope intercept form is y=mx+n, where m is the slope and n is the intercept.

Substituing in that equation the two points we get two different expressions. Now we have to solve a 2x2 system of equations.

I decide to solve it through substraction (literally one expression minus the other). That way we cancel out the n and obtain the value of m.

Now that we have m we plug in the value of m in one of the expressions to obtain the value of n.

To express the final equation we just plug in the values of m and n in the expression y=mx+n!

Answer:

y=6*x+101

Step-by-step explanation:

The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.

Hope this will helps

Answer:

11

Step-by-step explanation:

55/5 equals 11

Answer:

11

Step-by-step explanation:

55 divided by 5 equals 11

Answer:

true

Step-by-step explanation:

Answer:

For radio = $40.43

Television =  $444.73

Player =  $364.73

Step-by-step explanation:

The computation of the each device cost is shown below:

let us assume the following things

radio be x

television x + 10x

player x + 10x - $80

Now the equation is

x + x + 10x + x + 10x - $80 = $850

3x + 20x - $80 = $850

23x = $930

x = $40.43

For radio = $40.43

Television = $40.43 + 10(40.43)

= $40.43 + $404.3

= $444.73

and, the player would be

= $444.73 - $80

= $364.73

8w + 4 > 12

       -4    -4

8w > 8

/         /

8        8

w > 1

W is anything less than 1.

8w + 4 > 12

      - 4   - 4        subtract -4 to both sides.

_________

[tex]\frac{8w}{8}[/tex] > [tex]\frac{8}{8}[/tex]      divide 8 to both sides, 8's will cancel on the left side.

[tex]w[/tex] > [tex]1[/tex]

Answer:

bro i do not know what to say

Step-by-step explanation:

Answer:

30:24

Step-by-step explanation:

5 + 4 = 9

Divide 54 by 9

Then Multiply by 6.

Hope it helped.

Answer:

8.57

Step-by-step explanation:

We can calculate the value of x using similarity ratio

11/7 = (15 + x)/(15) cross multiply expressions

105 × 7x = 165 subtract 105 from both sides

7x = 60 divide both sides by 7

x = 8.57 approximately

[tex]= \color{plum}\tt(C) 7 \frac{2}{4} [/tex]

Quantity of water she needs [tex] = \tt \frac{3}{4} \: cup [/tex]

Number of servings she needs = 10

Number of cups of water she will need :

[tex] = \tt \frac{3}{4} \: \times 10[/tex]

[tex] = \tt\frac{30}{4} [/tex]

[tex] =\tt 7\frac{2}{4} \: cups[/tex]

Thus, she needs [tex] \tt 7\frac{2}{4} \: cups [/tex] of water.

Therefore, the correct option is [tex]\color{plum}\tt(C) 7 \frac{2}{4} [/tex]

Answer:

1

Step-by-step explanation:

Answer:

Sister: p

Lauren: 12 + 6p

Answer:

144

Step-by-step explanation:

63+81=9(7+9)=9(16)=144

Answer:

y=2/13

Step-by-step explanation:

Answer:

Its the third option from the top. y=-2/13x-40/13

Step-by-step explanation:

You do the maths.

Answer:

y=23x-8

Step-by-step explanation:

Use the formula y=mx+b

y-intercept is b which is -8

the slope is m which is in this case 23

Easy peasy!

Answer:

y=5/6x -3

Explanation:

first subtract -5x from both sides, then divide everything by -6, and boom you have your answer.

Answer:

45 is the answer

Step-by-step explanation:

first you have to know the sum of interior angle of that pentagon (540)

then add the all angle.

148 + x + 112 + 90 + 3x + 10 = 540.

or, 360 + 4x = 540

or, 4x = 540 - 360

or, 4x = 180

or, x = 180/4

or, x = 45

hope it will help you☺✌

Answer:

The expression is not factorable

Answer:

E.)  II, III

Step-by-step explanation:

She can only make one type and the chocolate chips use more than two cups of flour. And oatmeal and sugar use less than or equal to two cups for both and make the same amount.

Answer:

15 students

Step-by-step explanation:

i just used multiplication

Answer:

15 students

Step-by-step explanation:

20% is 1/5

So is 3 is 1/5 you multiply 3 by 5 (since 1/5 is 3 and to find 5/5 its you need a full 5/5)

3*5 = 15