I'm so lost I need help​

Answer:

x = 10

Step-by-step explanation:

[tex] \frac{(x + 4)}{2} = 7 \\ = > x + 4 = 7 \times 2 \\ = > x + 4 = 14 \\ = > x = 14 - 4 \\ = > x = 10[/tex]

.°. x = 10

Answer:

Given that

2+x/2=7

x/2=7-3

x/2=4

x=4/2

x=2

Answer:

he would have to use all of it and then $16 more to make both plans cost the same. I think he should go with US Cellular

Step-by-step explanation:

just because

Answer:

1280

106

Step-by-step explanation:

Answer:

3x+10

Step-by-step explanation:

Plug n(x) into the x of the m(x) and the answer is m(n(x)).

m(x) = 3x - 2

n(x) = x + 4

Plug in n(x) to m(x) as shown here

m(n(x)) = 3(x + 4) - 2

distribute the 3

m(n(x)) = 3x + 12 - 2

simplify

m(n(x))= 3x + 10

Let me know if this answer helps

Answer:

h = (A - 9)/6

Step-by-step explanation:

Step 1: Define

A = b² + 2bh

b = 3

Step 2: Substitute

A = (3)² + 2(3)h

Step 3: Evaluate and solve for h

A = 9 + 6h

A - 9 = 6h

(A - 9)/6 = h

Given:

Aisha has 3 pizzas.

She is serving each person at a party 1/4 of a pizza.

To find:

The number of people she can serve at the party.

Solution:

Let the number of people be x.

Number of pizzas is 3. So, each person get [tex]\dfrac{3}{x}[/tex] part of pizza.

It is given that each person get 1/4 of a pizza.

[tex]\dfrac{1}{4}=\dfrac{3}{x}[/tex]

Using cross multiplication, we get

[tex]1\times x=3\times 4[/tex]

[tex]x=12[/tex]

Therefore, the number of persons in 12.

Now, divide the number line in four equal parts between each pair of consecutive integers.

Then, count the marked points from 0 to 3 excluding 0. These points represent number of persons.

Answer:

1.000

Step-by-step explanation:

Answer:

-35

Step-by-step explanation:

-5 (x + 2) + 5 (x -5)

Expand:

= -5x - 10 + 5 (x - 5)

Expand once more:

= -5x - 10 + 5x - 25

Simplify:

-35

Answer:

C is your answer

Step-by-step explanation:

Answer:

x =5

Step-by-step explanation:

Using the formula for calculating the distance between two points

D = √(x2-x1)²+(y2-y1)²

Given the points A(2, x) , B(x, 8) and AB = 3√2

On substituting the given values into the formula;

AB = √(x-2)²+(8-x)²

3√2= √(x-2)²+(8-x)²

square both sides

(3√2)²= (x-2)²+(8-x)²

18 = (x-2)²+(8-x)²

expand

18 = x²-4x+4+64-16x+x²

18 = 2x²-20x+68

2x²-20x+68-18 = 0

2x²-20x+50 = 0

x²-10x+25 = 0

Factorize

x²-5x-5x+16 = 0

x(x-5)-5(x-5) = 0

(x-5)(x-5) = 0

x-5 = 0 an x-5 = 0

x = 5

Answer:

-22

Step-by-step explanation:

I'm assuming you don't need an explanation because this is just a short answer question.

Hope this helps! :)

Answer:

- 180

Step-by-step explanation:

[tex] - 6 \times 1 \times 30[/tex]

Multiply :

[tex] - 6 \times 1 = - 6 \\ - 6 \times 30 = - 180[/tex]

Step-by-step explanation:

f(x) = x³ - ax² - 13x + b.

f(1) = 1³ - a(1)² - 13(1) + b = 0

=> 1 - a - 13 + b = 0, b - a - 12 = 0.

f(-3) = (-3)³ - a(-3)² - 13(-3) + b = 0

=> - 27 - 9a + 39 + b = 0, 12 - 9a + b = 0.

Therefore, b - a - 12 = 12 - 9a + b. 8a = 24, a = 3.

=> b - (3) - 12 = 0, b = 15.

Answer:B 55

Step-by-step explanation:

Answer:

- 439

Step-by-step explanation:

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

Answer: 13 hours

Step-by-step explanation:

Money earned per hour = $11.00

Amount he plans to earn = $143. 00

Number of hours he will have to work to reach his goal = 143.00/11.00 = 13.

Therefore, Bryon will have to work of 13 hours to earn $ 143.00

Answer:

13 hours!

Step-by-step explanation:

All I did was divide $143.00 by $11.00 and got 13!

Or you could multiply $11.00 by 13 to get $143.00

They give you the same answer!! :D

Answer:

  real numbers, including the boundary lines

Step-by-step explanation:

The inequality symbols in this system both include the "or equal to" case, so the boundary lines of the "shaded area" are part of the solution set.

Ordinarily, weight is a continuous variable, so we presume the weights of almonds and cashews may be any real number. The problem statement gives no clarity in that regard, so it is entirely possible that the given nuts will only be delivered in packages with integer weights.

Based on our presumption, the solution set is best described as below.

_____

Additional comments

Each inequality gives rise to a "shaded region," as shown in the second attachment. The solution set will be the doubly-shaded region, limited to the first quadrant. (Quantities of nuts cannot be negative.) Strictly speaking, the answer choices are all incorrect.

Answer:

(12+3x)x

Step-by-step explanation:

1-  12x+3x  15x

2-   12x+3x 15x

3-   13x+4x  17x

4-  15x

Answer:

X = 5

Step-by-step explanation:

For the equilibrium position of the scale,

Weights on both the sides of the scale should be equal.

Weights on left side of the scale = Weights on the right side

Weights denoting X + Weights denoting (-1) = Weights denoting (X) + Weights denoting (1)

5(X) + 6(-1) = 3(X) + 4(1)

5X - 6 = 3X + 4

5X - 3x = 6 + 4

2X = 10

X = 5

Therefore, For X = 5, scale will be in the balanced position.

Answer:

[tex]x^{4}+28x^3+294x^2+1372x+2401[/tex]

Step-by-step explanation:

[tex](x+7)^{2} (x+7)^2 = (x+ 7)(x+7)(x+7)(x+7)\\(x^2+7x+7x+49)(x^2+7x+7x+49)=(x^2+14x+49)(x^2+14x+49)\\x^4+14x^3+49x^2+14x^3+196x^2+686x+49x^2+686x+2401\\x^4+28x^3+294x^2+1372x+2401[/tex]

Answer: NOT D have a good day!

Step-by-step explanation:

Answer:

C. 9%

Step-by-step explanation:

That's it

Answer:10

Step-by-step explanation:

Hey there! I'm happy to help!

Sum means to add. Let's call our number n.

n+6

We multiply this whole thing by 5.

5(n+6)

And this is 48.

5(n+6)=48

Have a wonderful day! :D

Answer:

t does not matter if the two numbers are the same for multiplication or division. 4. ( ÷ ) To divide two fractions, take the second fraction, and flip it so that the top number is now on the bottom and vice versa, then multiply the two fractions together like you would for number 3.

Step-by-step explanation:

Answer:45 dollars

Step-by-step explanation:

Jk just trying to get brainly points

Answer:

x=-4.1

Step-by-step explanation:

Multiply 5 by −2.

−10(x+3)=11

Divide each term by −10 and simplify.

x+3=−11/10

Move all terms not containing x to the right side of the equation.

x=−41/10

The result can be shown in multiple forms.

Exact Form:

x=−41/10

Decimal Form:

x=−4.1

Mixed Number Form:

x=−4 1/10

15= 1/2 + 3/2x + 10

X=3