Please help work this out

Answer:

40

Step-by-step explanation:

Use PEMDAS and follow the operations from left to right

Answer:

40

Step-by-step explanation:

use addition and subtraction to get answer

Answer:

Los que estan en casillas son los factores de 420. Espero y te ayude.

Step-by-step explanation:

Step-by-step explanation:

300/20 × 3/3 = 900/60

* 60 sec is 1 min therefore you want to get 60 secs in the denominator. In order to get that, you need to multiply.

900/60 divided by 60/60 is 15/1.

So 300m/20sec = 900m/60sec = 900mpm

If we're to do the same for all then it would be:

30m/20sec = 90m/60sec = 90mpm

15m/20sec = 45m/60sec = 45mpm

3m/20sec = 9m/60sec = 9mpm

Answer:

A. 0.2 pounds

Step-by-step explanation:

I just did it on edge.

Answer:

a 0.2

Step-by-step explanation:

Answer:

any numbers that are multiples of 10, such as

10 and 20

40 and 60

50 and 80

Step-by-step explanation:

Because 5 is a factor of 10, all multiples of 10 will also be multiplies of 5, such as 10, 20, 30, 40, 50, 60, and so on.

Answer:

y=mX+c

7=(1/2)(0)+c

c=7

y = 1/2 X + 7

Step-by-step explanation:

Please brainleist

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Answer:

-12b² + 6b + 862

Step-by-step explanation:

Answer:d

Step-by-step explanation:

Answer:

12.5 square yards.

Step-by-step explanation:

Let a square yard of carpet = x

The cost of installing a carpet is given by;

100 + 8x

The charge for installation

75 + 10x

The number of square yards of carpet for which the cost including carpet and installation is the same is given by;

100 + 8x = 75 + 10x

100 - 75 = 10x - 8x

25 = 2x

x = 25 / 2

x = 12.5 square yards.

Answer:

old post so answering for points

Step-by-step explanation:

Answer:

$1020

Step-by-step explanation:

Since 15% is taken away, the total price would be $1,020. This means that the sales price is 85% of the price.

Answer: $38.16

Step-by-step explanation:

Finding total costs with sales tax is really quite simple. Here is the formula.

O x P + O

use key below.

1. Solve

= 36 x 0.06

= $2.16

= 2.16 + 36

= $38.16

Key:

O = Original Price

P = Sales Tax Percentage

I hoped this answer helped your wonderful, creative minds. Keep working hard, and touch the stars.

- Mona May

The path difference will be 1571 nm

Now for the constructive interference, the formula is given

[tex]\rm dsin\theta==n\lambda[/tex]

here,

d = is the distance between slits.=060mm

θ = is the angle of diffraction=0.30 Degree

n = is the order of fringe=2

λ = is the path difference.

[tex]\lambda=\dfrac{(dsin\theta)}{n}[/tex] [tex]\lambda=\dfrac{(0.60\times10^{-3}\times sin(0.30)}{2} = 1.57\times10^{-6}[/tex]  

Thus path difference will be 1571 nm

To know more about the Diffraction of light follow

https://brainly.com/question/16749356

The answer is C. 3142

Answer:

34

Step-by-step explanation:

Answer: (-1, 6)

Step-by-step explanation:

Use the midpoint formula:

(Xm, Ym) = ([x1 + x2]/2, [y2 + y1]/2)

(Xm, Ym) = ([2 + -4]/2, [6 + 6]/2)

(Xm, Ym) = (-2/2, 12/2)

(Xm, Ym) = (-1, 6)

The midpoint is (-1, 6)

Answer:

12 crew members

Step-by-step explanation:

to find out this question you should first make 66 2/3% into a fraction

that is 99.99...% percent which is also 2/3

you can then divide 8 men by 2/3

that is 8/1 divided by 2/3 which is essentially 8/1 * 3/2

that turns into 12

that means there are 12 crew members

Answer:

B

Step-by-step explanation:

Adjacent means 'next to'. Angles 1 and 4 are next to angel 3, on the top and to the right.

Answer: the coefficient is 5

Complete question is;

Vickie conducts a survey of home builders to determine the average cost of building a new home. She samples 10 home builders who are building in the town in which she lives. Under which conditions will her sample be a representative sample? Select two options:

A) The builders were chosen at random.

B) The population included only builders who build in Vicki’s town.

C) The population included builders who build homes in any town.

D) The population included builders who do not build homes in Vicki’s town.

E) The builders were referred to Vicki by the realtor who will be selling the houses.

Answer:

Options A & B are correct.

A) The builders were chosen at random.

B) The population included only builders who build in Vicki’s town.

Step-by-step explanation:

Looking at the question, we see that Vickie wanted to determine the cost of building a new home in the town in which she lived. Now, she sampled builders who are building in the town in which she lives and thus, it makes the sample more representative.

However, the random method of choosing the builders would help to remove any lingering biases that may arise.

Thus, we can conclude that the builders were chosen at random and that it included only those who build in her town.

Thus, options A & B are correct.

Answer:

A)The builders were chosen at random., B)The population included only builders who build in Vicki’s town.

Step-by-step explanation:

Based on the vertical angles theorem we can assume that the angles are equal to each other so:

7x-25 = 4x + 2

Now find the value of x

Subtract 4x to both sides

3x - 25 = 2

Add 25 to both sides

3x = 27

Divide by 3 to isolate x

x = 7

Answer:

Step-by-step explanation:

[tex]21 \div 18[/tex]

Option second [tex]\rm (w-2.5)(w+2.5)[/tex] and option fourth  [tex]\rm (-4v-9)(-4v+9)[/tex]  are the products that result in a difference in squares

It is required to identify which products result in a difference of squares.

Polynomial is the combination of variables and constants in a systematic manner with "n" number of power in ascending or descending order.

We know that:

[tex]\rm (a^2-b^2)=(a+b)(a-b)[/tex]

In option first:

[tex]\\\rm= (5z+3)(-5z-3)\\\rm =-(5z+3)(5z+3)\\\rm =-(5z+3)^2[/tex]

It is not the difference between squares.

In option second:

[tex]\rm = (w-2.5)(w+2.5)\\\rm = (w^2-2.5^2)[/tex] By using [tex]\rm (a^2-b^2)=(a+b)(a-b)[/tex]

It is the difference between squares.

Similarly, in option third:

[tex]\rm = (8g+1)(8g+1)\\\rm = (8g+1)^2[/tex]

It is not the difference between squares.

Similarly, in option forth:

[tex]\rm = (-4v-9)(-4v+9)\\\rm = (4v+9)(4v-9)\\\rm = (4v)^2-9^2[/tex]

It is the difference between squares.

Similarly, in option fifth:

[tex]\rm = (6y+7)(7y-6)\\\rm = 42y^2+13y-42[/tex]

It is not the difference between squares.

Similarly, in option sixth:

[tex]\rm = (p-5)(p-5)\\\rm = (p-5)^2[/tex]

It is also not the difference between squares.

Thus, option 2 and option 4 are correct.

Learn more about polynomial here:

https://brainly.com/question/17822016

Answer:

3/20 or 0.15 or 15%

Step-by-step explanation:

Since 3 red marbles were drawn out of 20 outcomes, the probability the next marble will be red is 3/20. If you convert it to a decimal it will be 0.15, and if you convert it to a percent it will be 15%.

Answer: your answer would be 92 .

Step-by-step explanation: all you have to do is add . hope this helped <3 .

Answer:

The answer is P(x)8x-1200

Step-by-step explanation:

The profit function for Andrew’s new product line will be P(x) = 2x - 1200. Then the correct option is A.

A monetary profit, particularly the distinction between the amount gained and the actual cost of purchasing, running, or creating anything.

The profit is given as,

Profit = Revenue function  - Cost function

Andrew has determined that the revenue and cost functions for a new product line at his business are given by these functions.

R(x) = 5x

C(x) = 1200 + 3x

Then the profit function for Andrew’s new product line will be

P(x) = R(x) - C(x)

P(x) = 5x - 1200 - 3x

P(x) = 2x - 1200

The profit function for Andrew’s new product line will be P(x) = 2x - 1200. Then the correct option is A.

More about the profit is given below.

https://brainly.com/question/15036999

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Answer: A plane is a two-dimensional doubly ruled surface spanned by two linearly independent vectors. The generalization of the plane to higher dimensions is called a hyperplane. The angle between two intersecting planes is known as the dihedral angle.

Step-by-step explanation:

Hope this helps

A plane is eather a airplane or plane a flat surface of land that is very big

we have to calculate the values ​​of A and B, so we have to:

[tex]A=100\\B=5[/tex]

Since the equation is:

[tex]R(X)=(500+ax)(50-bx)[/tex]

And the following information was given:

A school typically sells 500 yearbooks each year for $50 each.

The economics class discovers that they can sell 100 more yearbooks for every $5 decrease in price.

So knowing that by increasing 100 more books sold this is equal to A and the decrease in value is going to be equal to b.

[tex]R(X)=(500+100x)(50-5x)[/tex]

See more about equation at brainly.com/question/2263981

Answer:

Hiking

Step-by-step explanation:

Given: Kayaking burns 4.5 calories per minute

The slope of the graph is 5

You can use rise over run to figure out the slope. Or you may have noticed the order pair (1,5)

This means hiking burns 5 calories per minute, which is greater than 4.5

Answer:

3π

Step-by-step explanation:

Perimeter of circle = 2rπ

r = 3

P = 6 π

semicircle = 1/2 circle

P = 3π

Mass is how much "matter" something is.  Weight is this with respect to gravity.  Therefore, if you took a ball to the moon, its mass would not change because the amount of matter is unaffected but the weight will change because the Earth and the Moon have different gravitational pulls.

Hope this helps!!