rafael counted a total of 40 white and yellow cars. there are 9 times as many white cars as yellow cars. how many white cars did rafael count.

Answers

Answer 1
Answer:

Answer:

360

Step-by-step explanation:

40 times 9 = 360

there are 360 yellow cars

or we can do it like this

360 divided by 9 = 40

or 360 divided by 40 = 9

pls mark me brailest for real  :,,(

Answer 2
Answer:

Answer:

360

Step-by-step explanation:

9 x 40 = 360

If you divide 360 by 9 it will give you 40,

or if you divide 360 by 40 it will give you 9.


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X+3x-2=6x-12 please help

Which function is continuous?

Answers

The answer is D. Cost of U.S. postage as a function of the weight of the letter.

Answer:

The answer is B

Step-by-step explanation:

Did the practice on edge.

4 in.7 in18 in.4 in.The surface area of the rectangular prism issquare inches.The volume of the rectangular prism isy cubic inches.

Answers

We have been given a rectangular prism and we are required to find its surface area and volume.

We shall solve this question by first stating the formula of the parameter we want to find, then, we apply the respective formulas to find the values of these parameters.

Surface area:

The surface area is the sum total of all the areas of all the faces of the prism.

To solve this question, we need to note that there are 6 faces whose area we must calculate but out of the 6, there are two faces

each that are equal in area.

From the above figure, we have that:

FACE 1 = FACE 2

FACE 3 = FACE 4

FACE 5 = FACE 6.

Thus, once we find the area of FACE 1, we already have the area of FACE 2 and so on.

Also, since each face is a rectangle, the area of a rectangle is given by:

\begin{gathered} A=l* b \n l=\text{length} \n b=\text{breadth or width} \end{gathered}

Now, let us calculate the area of FACE 1, 3 and 5.

\begin{gathered} \text{FACE 1:} \n A_1=18*4=72in^2 \n \text{FACE 3:} \n A_3=4*7=28in^2 \n \text{FACE 5:} \n A_5=18*7=126in^2 \end{gathered}

Now we just sum up all the areas and multiply them by two to account for FACES 2, 4 and 6

\begin{gathered} A_S=2*(72+28+126) \n \therefore A_S=452in^2\text{ } \end{gathered}

Therefore, the Surface area of the rectangular prism is:

452 square inches

Volume:

The formula for the volume of a rectangular prism is given as:

\begin{gathered} V=l* w* h \n l=\text{length} \n w=\text{width or breadth} \n h=\text{height or depth} \end{gathered}

The length, width, and height are shown in the figure below:

Thus, we can easily calculate our volume as shown below:

\begin{gathered} V=7*18*4in^3 \n \therefore V=504in^3 \end{gathered}

Therefore, the Volume of the rectangular prism is:

V = 504 cubic inches

To recap, the final answers are:

Surface Area = 452 square inches

Volume = 504 cubic inches

Find the sum of the first six terms of a geometric progression .​

Answers

Question:

Find the sum of the first six terms of a geometric progression.

1,3,9,....

Answer:

S_6 = 364

Step-by-step explanation:

For a geometric progression, the sum of n terms is:

S_n = (a(r^n - 1))/(r - 1)

In the given sequence:

a = 1

r = 3/1 =3

n = 6

So:

S_n = (a(r^n - 1))/(r - 1)

S_6 = (1 * (3^6 - 1))/(3 - 1)

S_6 = (3^6 - 1)/(2)

S_6 = (728)/(2)

S_6 = 364

What is the relationship between these two values? 8 and 400

Answers

Final answer:

The numbers 8 and 400 have different orders of magnitude. They also possess a ratio relationship, with 400 being 50 times bigger than 8. While not directly related through square and square root, both numbers share these relationships with other numbers.

Explanation:

The relationship between the values 8 and 400 can be understood through the concept of order of magnitude in mathematics. The order of magnitude is a rough measure of the size of a number, typically based on powers of 10.

An important factor in analyzing this relationship is understanding the concept of ratio and interval level data. Unlike interval level data, the ratio between the numbers, in this case 8 and 400, carries meaningful information in a ratio scale data. In this case, 400 is 50 times bigger than 8.

Another mathematical relationship between 8 and 400 is square and square root, since 400 is the square of 20, and 8 is the square root of 64. So, although there is no direct square or square root relationship between 8 and 400, they share these relationships with other numbers.

Learn more about Order of Magnitude here:

brainly.com/question/37568558

#SPJ2

Answer:

They both come in the 8 times table.

Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 9 hours of burning, a candle has a height of 25.4 centimeters. After 23 hours of burning, its height is 19.8 centimeters. What is the height of the candle after 22 hours?

Answers

Answer:

Suppose that the height (in centimeters) of a candle is a linear function of

the amount of time (in hours) it has been burning.

After 11 hours of burning, a candle has a height of 23.4 centimeters.

After 30 hours of burning, its height is 12 centimeters.

What is the height of the candle after 13 hours?

:

Assign the given values as follows:

x1 = 11; y1 = 23.4

x2 = 30; y2 = 12

:

Find the slope using: m = %28y2-y1%29%2F%28x2-x1%29

m = %2812-23.4%29%2F%2830-11%29 = %28-11.4%29%2F19

:

Find the equation using the point/slope formula: y - y1 = m(x - x1)

y - 23.4 = -11.4%2F19(x - 11)

y - 23.4 = -11.4%2F19x + 125.4%2F19

y = -11.4%2F19x + 125.4%2F19 + 23.4

y = -11.4%2F19x + 125.4%2F19 + 23.4

y = -11.4%2F19x + 125.4%2F19 + 444.6%2F19

y = -11.4%2F19x + 570%2F19

y = -11.4%2F19x + 30, is the equation

:

What is the height of the candle after 13 hours?

x = 13

y = -11.4%2F19(13) + 30

y = -148.2%2F19 + 30

y = -7.8 + 30

y = 22.2 cm after 13 hrs

Please answer correctly!

Graphing the equation y-3=1/3(x+4)

Thank you.

Answers

Answer:

X intercept (-13,0)

y intercept (0,13/3)

Step-by-step explanation:

slope intercept form

y=1/3x+13/3