The price of a 5-minute phone call is $1.75. What is the price of a 12-minute phone call?
The price of a 12-minute phone call is?

Answer:

By power of a point, AC⋅CB=DC⋅CE. That is, 12⋅12=6⋅(2R–6).

Then, R=15.

THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!

The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.

The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.

Answer:

7 .375

Step-by-step explanation:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

Answer:

x= -63/4

Step-by-step explanation:

Answer:

175 square inches

Step-by-step explanation:

A = 1/2(bh)

V = bh

Hope this helps! Pls give brainliest!

Answer:

The Volume is 175 inches

Step-by-step explanation:

Base B is 7 in

Height H is 10 in

Prism length is 5 in  

Prism Volume = 175 in

The average speed for the whole trip is required.

The average speed of the car is 100 km/h.

Let \(x\) be the total distance of the trip.

Distance traveled for 2nd half

\(60\times 1=60\ \text{km}\)

\(x-\dfrac{3}{5}x=60\\\Rightarrow \dfrac{1}{5}x=60\\\Rightarrow x=300\ \text{km}\)

Total time

\(t=2+1=3\ \text{hours}\)

Average speed is given by

\(v=\dfrac{300}{3}\\\Rightarrow v=100\ \text{km/h}\)

The average speed of the car is 100 km/h.

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Answer:

The answer should be 216 if you are just looking for the volume.

hope i helped

Step-by-step explanation:

In order to find volume, you must first know the formula A*A*A meaning width and length which make base and height in order to find the volume. Since its a cube all sides must be equal and that means all the measurements are the same. So all you must do is get six and times it by six. Then the answer for that must be multiplied again to get your volume.

EX: 6*6*6=216.

Answer:Add a clearer picture

Step-by-step explanation:

I can see a bit of the answer and words but I would go for the 2 answer I feel like it’s the best one.

Answer:

1

Step-by-step explanation:

anything divided by itself is 1

also when dividing exponets with the same base we subtract the exponet

7-7

0

and 8^0 is 1 because anything raised to the power of zero is 1

hopes this helps

Answer:

1

Step-by-step explanation:

8^7=8^7

A number divided by itself = 1

8^7=2097152

2097152/2097152=1

Answer:

One-third

Step-by-step explanation:

The reason is because there are 3 red marbles with a total of 9. That then becomes 3/9. If you simplify that it turns into 1/3.

Can i Please have brainliest!?

Answer:

It is B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Answer: $4000

Step-by-step explanation:

In the age of cars you go 9.5 and then go up till you reach a part of the line.  In that, you can see that 9.5 goes up and reaches the line at $4000.

The predicted price you would pay if you purchase one of these cars that is 9.5 years old is 4000.

A scatter plot is a graphical representation of bivariate data that uses dots to represent values for two different variables.

The data for each observation is represented by the position of the dot on the x-axis and y-axis.

The x-axis represents one variable and the y-axis represents the other variable.

Scatter plots are commonly used to observe relationships between variables, such as correlations or trends, and to identify outliers or patterns in the data.

We have,

To predict the price you would pay for a car that is 9.5 years old, you need to look at the scatter plot and find the point that corresponds to an age of 9.5 years.

Once you have identified that point, draw a vertical line from that point to the line of best fit (or draw the line of best fit if it's not already on the plot).

Next, draw a horizontal line from the point where the vertical line intersects the line of best fit to the y-axis.

This will give you an estimated price for a car that is 9.5 years old based on the data in the scatter plot.

Now,

We see that,

At 9.5 years, the vertical line and the horizontal line correspond to a resale value of 4000.

Thus,

The predicted price you would pay if you purchase one of these cars that is 9.5 years old is 4000.

Learn more about scatter plots here:

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Part C is the answer

mark me brainliest pls

Answer:

Perimeter is 12mm, height is \(2\sqrt3\)mm in simplest radical form, and 3.5mm in approximate decimal form.

Step-by-step explanation:

The perimeter is easy; since it's an equilateral triangle, all sides are the same length of 4, so you can just do 3*4 (3 sides, 4mm each) to get a perimeter of 12.

For the height, you can see that it forms two right triangles, each with a given base of 2 and a hypotenuse of 4. We can apply the pythagorean theorem (\(a^2+b^2=c^2\)) here to find the missing leg length of the smaller right triangles, which is equal to the big triangle's height.

I've enclosed an attachment for that.

Hope this helps!

Answer:

140

Step-by-step explanation:

Answer:

120/140 and 84/140 and 35/140

Step-by-step explanation:

Answer: The y-intercept is the initial amount Tammy earns.

Step-by-step explanation:

Always remember that for graphs, the y-intercept is the initial amount. In this case, it would be the initial amount or the very first amount Tammy earns. If the line goes through the origin (0,0), that means that Tammy earns $0.00 for 0 hours of working.

To determine whether the $15 set aside for paint is enough to cover the entire surface area of the composite figure, we need to find out the total surface area of the figure in square feet and then divide that by the coverage area of a single can of paint (25 sq ft) to determine the number of cans required. Then we can multiply the number of cans by the cost per can ($6.79) to see if it exceeds the $15 budget.

Let's assume that the composite figure is made up of two shapes, a rectangular prism, and a triangular prism. The formula for finding the surface area of a rectangular prism is 2lw + 2lh + 2wh, where l, w, and h are the length, width, and height of the prism respectively. The surface area of a triangular prism is given by the formula Ah + 2Bs, where A is the area of the base triangle, h is the height of the triangle, B is the base of the triangle, and s is the slant height of the triangular face.

Without specific measurements of the composite figure, we cannot calculate its exact surface area. Therefore, let's assume the surface area of the composite figure is 58 sq ft, as stated in the problem.

Let the surface area of the rectangular prism be x, and the surface area of the triangular prism be y. Then, we can write the equation:

x + y = 58

We can assume that the entire shape is to be painted silver, which means both the outer and inner surfaces of the two shapes.

For the rectangular prism, we have two pairs of identical faces, and for each pair, we need to paint both the outer and inner surfaces. Therefore, the surface area of the rectangular prism that needs to be painted is:

2(2lw + 2lh + 2wh) = 4lw + 4lh + 4wh

For the triangular prism, we have three faces that need to be painted - the two triangular faces and the rectangular face. We need to paint both the outer and inner surfaces of the triangular faces, and only the outer surface of the rectangular face. Therefore, the surface area of the triangular prism that needs to be painted is:

2(Ah + Bs) + Bw

where w is the width of the rectangular face.

Now we need to make some assumptions about the dimensions of the composite figure to proceed. Let's assume that the rectangular prism has a length of 3 ft, a width of 2 ft, and a height of 4 ft, and that the triangular prism has a base of 2 ft, a height of 4 ft, and a slant height of 5 ft.

Using these dimensions, we can calculate the surface areas of the rectangular and triangular prisms:

Surface area of rectangular prism = 4lw + 4lh + 4wh = 4(32 + 34 + 2*4) = 52 sq ft

Surface area of triangular prism = 2(Ah + Bs) + Bw = 2(1/224 + 25) + 22 = 24 sq ft

Total surface area of the composite figure = 52 + 24 = 76 sq ft

Now we can calculate the number of cans of paint required:

Number of cans = Total surface area / Coverage area of one can = 76 / 25 = 3.04 cans (rounded up to 4 cans)

The cost of 4 cans of paint is:

4 cans * $6.79 per can = $27.16

Since the cost of 4 cans of paint exceeds the set aside $15 for paint, it is

Answer:

  $1200

Step-by-step explanation:

You want to know the amount borrowed at 7.2% if the simple interest for one year is $86.40.

The interest formula is ...

  I = Prt

where P is the amount borrowed, r is the interest rate, and t is the number of years.

Using the given values, we have ...

  86.40 = P·0.072·1

  P = 86.40/0.072 . . . . . . divide by the coefficient of P

  P = 1200

You have borrowed $1200.

Answer: 1200

Step-by-step explanation: Linear equation. 7.2x = 100(86.40). then divide by 7.2 on each side. x=1200

Answer:

75 miles miles an hour. (First one)

5 mph for the second one.

Step by Step:

1800%2F3 = u + v   (1)  is the equation for the flight with the wind.

                     (Here "u" is the airspeed of the airplane with NO wind,

                           "v" is the wind speed)

1800%2F4 = u - v   (2)  is the equation for the flight against the wind.

Simplify equations (1) and (2) and write them as a system:

u + v = 600,           (1')

u - v = 450.           (2')

Now add the two equations (1') and (2'). You will get

2u = 1050  --->  u = 1050%2F2 = 525 miles per hour.

Having this, you can easily determine "v" from (1'):  

v = 600 - 525 = 75 miles per hour.

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

Second one will be 15 divided by 3 = 5mph

Answer:

look at the picuture

Step-by-step explanation:

1. -1

2. 1

3. -2

4. 1

5. 36

6. -3

7. 28

8. 0

9. -40

10. 1

11. -49

12. -4

13. 35

14. -80

15. 14

Hope that helps!

The answer is :
B) The volume of a rectangular pyramid is 13 the volume of a rectangular prism. The volume of the rectangular pyramid is 56 cm3.