Alex has a collection of vehicle models. He built 8 model airplanes, 4 model trains, and 12 model cars. Write a ratio to represent the ratio of cars to airplanes.
A. 12:24
B. three halves
C. 8:12
D. 4 to 6

Answer: b, 1/10

Step-by-step explanation:

You have to find the amount of blue marbles. The table says it is 20. The total amount of numbers is 200, and 20/200 is 1/10. Thus, the answer is B. Hope this helps!

P.S. mark as brainlist please

Answer:

5

step by step explanation

The answer is five. I cant give an explanation because i used a website to answer it-

Answer:

Step-by-step explanation:  

1. distributive property - 3x2w=6w    3x9=27

2. set up the new equation -   6w+27=57

3. minus 27 from both sides -  6w=30

4. divide by 6 on each side -  6w/6=w    30/6=5

5. answer -  w=5

Answer:

[tex]b=\frac{3}{5}[/tex]

Step-by-step explanation:

Solve for b:

[tex]\frac{4}{3}b=\frac{4}{5}[/tex]

Divide 4/3 on both sides

[tex]b=\frac{3}{5}[/tex]

Answer:

1020

Step-by-step explanation:ddo the area with both triangles then multiply

Answer: 1020

Step-by-step explanation:

Part A: To draw triangles ABC and DEC separately, follow these steps:

The lengths of sides BC, DE, and EC are as follows:

Part B: To find side AB of triangle ABC, we can use the concept of similarity and ratios. Since triangles ABC and DEC are similar, their corresponding sides are proportional. We can set up the following proportion:

AB/DE = BC/EC

Plugging in the given values, we get:

AB/1.2 = BC/2

To solve for AB, we can cross-multiply and then divide:

AB = (BC/2) x  1.2

Now we need to find the value of BC. We can use the Pythagorean theorem, as BC is the hypotenuse of triangle ABC. The Pythagorean theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides.

BC² = AB² + BE²

Plugging in the given value for BE, we get:

BC^2 = AB² + 0.3²

Now we can substitute the value of AB from the previous equation into this equation:

BC² = ((BC/2) * 1.2)² + 0.3²

Simplifying, we get:

BC² = 0.36 x BC^2/4 + 0.09

Multiplying both sides by 4 to eliminate the fraction, we get:

4 x  BC² = 0.36 x BC² + 0.36 + 0.09

Combining like terms, we get:

4 x  BC² = 0.36  BC² + 0.45

Subtracting 0.36 x BC² and 0.45 from both sides, we get:

3.64 x BC² = 0.45

Dividing both sides by 3.64 to isolate BC², we get:

BC² = 0.45 / 3.64

Taking the square root of both sides to solve for BC, we get:

BC ≈ √(0.45 / 3.64)

BC ≈ 0.357 feet

Now we can substitute the value of BC back into the equation for AB:

AB = (BC/2) x  1.2

AB ≈ (0.357/2) x  1.2

AB ≈ 0.214 feet

So, the approximate length of side AB of triangle ABC is 0.214 feet.

Read more about triangle here:

https://brainly.com/question/17335144

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See full text below



Triangles ABC and DEC are similar. Side DE is 1.2 feet, side EC is 2 feet, and side BE is 0.3 foot.

Part A: Describe how to draw triangles ABC and DEC separately. Be sure to give the lengths of sides BC, DE, and EC in the description. (6 points)

Part B: Find side AB. Show each step of your work. (6 points)

Answer:

3

Step-by-step explanation:

I hope it will help you. Please mark me as brainliest if you got your answer

Answer:

Both careers try to support student success; however, teaching and training careers involve direct instruction of students.

Answer Explanation:

Professional support careers help people involved in education and training systems with personal and family needs,  educational goals, mental health assistance, and career decision-making. They provide support and encouragement to students undergoing challenging experiences. Professional support career titles include counselors and Psychologists, among others.

Teachers and trainers offer instructions to students in the class or other conducive places. They help students complete their syllabus, learn the intended materials, acquire knowledge, and pass their examinations.

i hope this helps you.

actually you just need to know the formula of area  which is 1/2 × base x height this is area and for perimeter just everything the lengths of the sides of the triangle .

The surface area of a cube is given by the formula 6s^2, where s is the length of the edge. In this case, s = 11 feet, so the surface area of the cube is:

6s^2 = 6(11)^2 = 6(121) = 726 square feet

Since the room has six surfaces that need to be painted (four walls, one ceiling, and one floor), the total surface area that needs to be painted is:

6 x 726 = 4356 square feet

Therefore, the photographer's darkroom needs to have 4356 square feet of black paint applied to all of its surfaces.

Answer:

a

Step-by-step explanation:

Answer:

[tex]6 {a}^{2} = 6[/tex]

[tex] {a}^{2} = 1[/tex]

[tex]a = 1[/tex]

The side length of each face is 1 cm.

Answer:

A) 1 cm

Step-by-step explanation:

Answer:

P(red) = 1/3

P(purple) = 1/3

P(red, then purple) = (1/3)(1/3) = 1/9

P(purple, then red) = (1/3)(1/3) = 1/9

P(red and purple) = 1/9 + 1/9 = 2/9

Answer:

N' (-5,0), M' (-2, -1), O' (-3,1)

Step-by-step explanation:

Answer:

280/12 = 23.33

Step-by-step explanation:

Do the top one first and divide it by the bottom

Answer:

70/3

this is the answer I hope it helps u!! :D

Answer:

The answer is 28

Step-by-step explanation:

Answer:   skip 3 in kick you would get 9 [tex]\sqrt{x} 876\int\limits^a_b {x} \, dx =88[/tex]

Answer:16

Step-by-step explanation:

First you find the Lower quartile, which in this case is 6. Then you find the Upper quartile ,which here is 22. You then subtract the two which gives you your Interquartile range (IQR).

Add all of them together, you get 40 then divide by 8 because there are heights listed then the mean height is 5

Answer is 5

Answer:

using sample data to make a prediction about the population

Step-by-step explanation:

it's inferential statistics which helps to make hypotheses and pridiction

because it's a simple question it should be the 3rd one you pir

Answer:

Step-by-step explanation:

I think its the third one

Answer:

1. true

2. false

3. false

4. false

Step-by-step explanation: double check.

Answer:

87

Step-by-step explanation:

Answer:

the inly way this could be a function is iif it is x times 0 plus 2

Answer:

  yes

Step-by-step explanation:

You want to know if the relation shown is a function.

A set of ordered pairs (x, y) represents a function if there are no repeated x-values. Here, there are 4 unique x-values for the 4 ordered pairs (none are repeated), so this relation is a function.

__

Additional comment

Yes, it's that simple.

Look down the x-list. If you see any repeats, it is not a function. The same is true for ordered pairs (x, y). If there are any repeated first numbers, it is not a function.

Answer: 396

Step-by-step explanation:

Answer: 63 square inches