What is the value of x?
m
489
722
n
Explain how you knew that
answer:

2b + 3

Step-by-step explanation:

Combine like terms

7b -9b = -2b

-2b +4b =2b

2b +3 = 2b+3

Answer:

A

Step-by-step explanation:

Answer:d

Step-by-step explanation:

Answer:

Step-by-step explanation:

let the total cost be y

and the number of minutes be m

Plan A

$20 and additional 6cent

6cent to dollar =$0.06

the linear expression is given as

y=20+0.06m---------1

Plan B

$31.5 and additional 4cent

6cent to dollar =$0.04

the linear expression is given as

y=31.5+0.04m----------2

Equating 1 and 2 we can find m

20+0.06m=31.5+0.04m

20-31.5=0.04m-0.06m

-11.5=-0.02m

m=11.5/0.02

m=575

therefore m>575

Answer:

He would walk 20 miles in 5 hours.

Step-by-step explanation:

Mo walked 20 miles in 5 hours.

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Mo walked 12 miles in 3 hours.

In 1 hour Mo walked= 12/3

                               = 4 miles

and, in 5 hours Mo walked

= 5 x 4

= 20 miles.

Hence, Mo walked 20 miles in 5 hours.

Learn more about unitary method here:

https://brainly.com/question/22056199

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Answer: x^2+x-12 = 0 ⇒ x = -4 or x = 3 and x^2-6x+9 = 0 ⇒ x= 3

x^2+x-12 = 0 (Find two numbers that add to 1 and multiply to -12)

x^2-3x+4x-12 = 0 (Factor out like terms)

x(x-3)+4(x-3) = 0 (Group common terms)

(x-3)(x+4) = 0 (Set each term to equal 0 and solve for x)

∴ x = -4 or x = 3

x^2-6x+9 = 0 (It's a perfect square trinomial)

(x-3)^2 = 0

∴ x = 3

Answer: x = -4 and x = 3 for the first one. x- 3 for the second one.

Step-by-step explanation:

big brain time

Answer

d.?

Step-by-step explanation:

Answer: The answer is 13

Step-by-step explanation:

Hopefully I'm right, sorry if it's wrong..

Answer:

15 ounces per box

Step-by-step explanation:

What is the weight, in ounces, of one box?

165ounces/ 11 boxes

This means

165ounces per 11 boxes

Hence:

11 boxes = 165ounces

1 boxes = x ounces

Cross Multiply

11x = 165 × 1

x = 165/11

x = 15 ounces

Therefore, the weight, in ounces, of one box is 15 ounces per box.

Answer:

15 ounces per box

Step-by-step explanation:

Answer:

Error in step (5)

Step-by-step explanation:

Steps                             Statements

    1                            cos(2x) = 2cosx - 1

    2                           Let (2x) = θ

    3                           Then x = [tex]\frac{\theta }{2}[/tex]

    4                           cos(θ) = [tex]2\text{cos}^2{\theta}-1[/tex]

    5                           cos(θ) + 1 = [tex]2\text{cos}^2{\frac{\theta}{2}}[/tex]

    6                            [tex]\frac{1+\text{cos}\theta }{2}=cos^{2}\frac{\theta }{2}[/tex]

    7                            [tex]\text{cos}^{2}\frac{\theta }{2}=\frac{1+\text{cos}\theta }{2}[/tex]

    8                            [tex]\text{cos}(\frac{\theta }{2})=\pm \sqrt{\frac{1+cos(\theta)}{2} }[/tex]

By comparing the solution given in the picture attached with the solution above,

Step 5 has error.

There should be [cos(θ) + 1 = [tex]2\text{cos}^2({\frac{\theta}{2}})[/tex]] in place of [-1 + cos(θ) = [tex]2\text{cos}^2({\frac{\theta}{2}})[/tex]]

Answer:

C. Step five

Step-by-step explanation:

got it right on edge :)

Answer:

112

Step-by-step explanation:

Supplementary angles means that angle A and angle B added together equal 180˚. This mean we can re-write the angle measures into an algebra problem

A(3x+16) + B(2x + 4 ) = 180

Or

5x + 20 = 180

5x + 20 - 20 = 180 - 20

5x = 160

5x/5 = 160/5

x = 32

Now that we know that X = 32, we can plug 32 into the measure of angle A.

A(3x+16)

A(3(32)+16)

A(96+16)

A(112)

Angle A equals 112˚ and Angle B equals 68˚.

Answer: You move the decimal to the right for the dividend and divisor.

Step-by-step explanation:

Answer:[tex](-7-2)=-3(-3-0)[/tex]

Step-by-step explanation:

First use slope intercept form to find the value of b (the y intercept). The slope intercept formula is

[tex]y=mx+b[/tex]

Since we are given the point (-3,2), we can say that y=2 and x=-3. m=-3. Then we get

[tex]2=-3(-3)+b[/tex]

[tex]2=9+b[/tex]

[tex]b=-7[/tex]

Since we now have the y intercept, we can convert it to a point: (0,-7). Plug this into the point slope equation:

[tex](y_{1}-y_{2})=m(x_{1}-x_{2})[/tex]

Our first point is (-3,2). Our second point is (0,-7). Therefore:

[tex]x_{1}=-3\\y_{1}=2\\x_{2}=0\\y_{2}=-7\\m=-3[/tex]

Plugging into the equation, we get

[tex](-7-2)=-3(-3-0)[/tex]

Answer:

2 is the correct answer yes

Answer:

13.5

Step-by-step explanation:

1350/100=13.5

Answer:

13.5 gallons

Step-by-step explanation:

you divide basically I don't know how to explain but that's the answer

Answer:

x=0.1

Step-by-step explanation:

2x+1+=19

19-1=18

2x=18

2/18=0.1

x=0.1

Answer:

x= 9

Step-by-step explanation:

First I would subtract the 1 from 19 which leaves me with 18 then divide both sides by 2 so 2x/2 = 18/2 which gives me 9 now to check. 2 multiplied by 9 =18 plus 1 =1 9. and thats how I get the answ.r

Answer: (5x² +3) (5x² - 9)

Plz mark brainliest:)

Answer:

[tex](5x^2+3)(5x^2-9)[/tex]

Step-by-step explanation:

Answer:

what is the question

Step-by-step explanation:

Answer:

The inequality notation is x >= 2 (put the line underneath >)

Number line should have a filled in dot on the 2, with an arrow pointing to the right infinitely.

Explanation:

14 + 8x >= 30

8x >= 16

x >= 2

>= is just this symbol (>) with a line underneath it.

Hope this helps!

If x is the first integer, then the fourth integer is x + 3. The sum of these is 33, so

x + (x + 3) = 33

2x + 3 = 33

2x = 30

x = 15

Answer:

Step-by-step explanation:

x=15

Answer:

y = -13

Step-by-step explanation:

-22 = y - 9

y = -22 + 9

y = -13

Hope this helps!

Answer:

y= -13

Step-by-step explanation:

Isolate the y by adding 9 on each side: -13 = y

Answer: y = -13

I hope this helped, please mark Brainliest, thank you!

Given:

One solution to a quadratic equation is [tex]x=-\dfrac{5}{3}[/tex].

To find:

The true statement about remaining solutions.

Solution:

We know that, number of solution to a quadratic equation is 2.

According to the complex conjugate root theorem, if a complex number x+iy is a root of an equation then its conjugate x-iy is also a root of that equation.

It means, the complex roots are in the pair of two.

Using complex conjugate root theorem, a quadratic equation has either 0 complex roots or 2 complex roots.

One solution to a quadratic equation is [tex]x=-\dfrac{5}{3}[/tex], which is real.

There are no complex solutions and there is exactly one more real solution.

Therefore, the correct options are A and E.

Answer:

table will be 7, 11, 15,19

Order pairs will be (1,7)(2,11)(3,15)(4,19)

the fifth term of the sequence will be 23

Step-by-step explanation:

4 (1)+3=7

4(2)+3=11

4(3)+3=15

4(4)+3= 19

4(5)+3=23

Hope this helps

Answer: this is the answer

Step-by-step explanation:

Answer:

$3.50

Step-by-step explanation:

Answer:

A random sample of at least 150 students.

Step-by-step explanation:

If you pick athlets they might pick sports they are biased towards, so the best would be random people so that you don't get a biased answer.

Answer: C = 10 students from each 7th grade homeroom

Step-by-step explanation:

The more students from each homeroom represents a larger population that creates less of a chance for having a bias sample.

Answer:

222

Step-by-step explanation:7x6=42   20x9=180    42+180=222

Answer:

7.20

Step-by-step explanation:

12/5=2.4

2.4 for lb of apples

2.4*3=7.2

Answer:

$7.20 for 3 pounds

Step-by-step explanation: