WILL GIVE BRAINLIEST! PLEASE HURRY!!Keiko and Eric each randomly surveyed people with cell phones. They recorded peoples’ ages (a years) and how many texts they send per day on average (t texts). For their respective data, they each drew a line of best-fit and determined its equation. They then compared equations and made inferences based only on the equations they calculated.

Look at the attachment.

Determine how many texts a 16 year old would send based on the trend line equation for both Keiko and Eric. Round to the nearest whole number.



Keiko = 76, Eric = 100

Keiko = 66, Eric = 64

Keiko = 70, Eric = 46

Keiko = 96, Eric = 100

WILL GIVE BRAINLIEST! PLEASE HURRY!!Keiko And Eric Each Randomly Surveyed People With Cell Phones. They

Answers

Answer 1

Answer:

Step-by-step explanation:

For Keiko's trend line equation, we have t = 0.95a + 59. Plugging in a = 16, we get t = 0.95(16) + 59 = 74.2. Rounding to the nearest whole number, we get t ≈ 74.

For Eric's trend line equation, we have t = 0.55a + 90. Plugging in a = 16, we get t = 0.55(16) + 90 = 98.8. Rounding to the nearest whole number, we get t ≈ 99.

Therefore, a 16 year old would send approximately 74 texts per day based on Keiko's trend line equation and approximately 99 texts per day based on Eric's trend line equation. So, the answer is Keiko = 74, Eric = 99.

Answer 2

The solution is, a 16 year old would send approximately 74 texts per day based on Keiko's trend line equation and approximately 99 texts per day based on Eric's trend line equation.

What is equation?

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.

here, we have,

For Keiko's trend line equation,

we have t = 0.95a + 59.

Plugging in a = 16,

we get t = 0.95(16) + 59 = 74.2.

Rounding to the nearest whole number, we get t ≈ 74.

and, we have,

For Eric's trend line equation,

we have t = 0.55a + 90.

Plugging in a = 16,

we get t = 0.55(16) + 90 = 98.8.

Rounding to the nearest whole number, we get t ≈ 99.

Therefore, a 16 year old would send approximately 74 texts per day based on Keiko's trend line equation and approximately 99 texts per day based on Eric's trend line equation.

So, the answer is Keiko = 74, Eric = 99.

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Related Questions

WILL GIVE BRAINLIESTT!! 13 Points! HURRYYY! Madison is monitoring the temperature over several hours.
Loook at pic attachment.


Her data are shown in the table. She draws a line of best fit with the equation y = -6.2x + 64, where x represents the hour and y represents the temperature.



Describe the meaning of the slope and y-intercept in this context

A. The slope applied to this situation is the temperature drops 6.2 degrees per hour. The y-intercept means at hour 0 (start of recording data), it was a temperature of 64 degrees

B. The slope applied to this situation is the temperature drops 6.2 degrees per hour The y-intercept means at hour 1, it was a temperature of 6.2 degrees

C. The slope applied to this situation is the temperature drops 64 degrees per hour. The y-intercept means at hour 0, it was a temperature of 6.4 degrees

D. The slope applied to this situation is the temperature drops 6.2 degrees per 2 hours. The y-intercept means at hour 2, it was a temperature of 64 degrees

Answers

Answer:

Step-by-step explanation:

The correct answer is A.

In the context of this situation, the slope of -6.2 means that the temperature drops 6.2 degrees for every hour that passes. The negative sign indicates that the temperature is decreasing over time.

The y-intercept of 64 means that at hour 0 (the start of recording data), the temperature was 64 degrees. This is the initial value of the temperature, before any time has passed.

The slope and y intercept describes that

The slope applied to this situation is the temperature drops 6.2 degrees per hour. The y-intercept means at hour 0 (start of recording data), it was a temperature of 64 degrees.

What is Slope?

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the

change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx where, m is the slope

We have,

The line of best fit with the equation y = -6.2x + 64, where x represents the hour and y represents the temperature.

As, we know that the slope shows the rate of change of one quantity with respect to another quantity.

Here, the slope -6.2 tells us that the  temperature drops 6.2 degrees per hour.

and, the y intercept tells us that at 0 hour the temperature is 64 degree.

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PLEASE HELP AND EXPLAIN! DUE TODAY

Screenshot #2 is the previous question.

Answers

Its c.

To find the area of the parallelogram formed by the points (-5, 2), (2, 0), and (4, -4), we need to first find the fourth vertex of the parallelogram. Since opposite sides of a parallelogram are parallel and have equal length, the fourth vertex can be obtained by adding the vector formed by the points (-5, 2) and (2, 0) to the point (4, -4). This gives us the fourth vertex as (11, -6).

Next, we can use the distance formula to find the lengths of the two sides of the parallelogram. The length of the side connecting (-5, 2) and (2, 0) is sqrt(45), and the length of the side connecting (2, 0) and (4, -4) is 2sqrt(5).

Finally, we can use the formula for the area of a parallelogram, which is base times height, to find the area of the parallelogram. The base of the parallelogram is the distance of sqrt(45) between (-5, 2) and (2, 0), and the height is the distance of 2sqrt(5) between (2, 0) and (4, -4). Multiplying these values together gives us an area of 42 square units, which is option C.

Pls solve and show each step

Thx

Answers

The perimeter of triangle MNO is given as follows:

17.2 in.

What are similar triangles?

Similar triangles are triangles that share these two features listed as follows:

Congruent angle measures, as both triangles have the same angle measures.Proportional side lengths, which helps us find the missing side lengths.

Applying the Pythagorean Theorem, the side length x of triangle MNO is given as follows:

x² = 4² + 6²

x² = 52

x = square root of 52

x = 7.2 in.

Hence the perimeter of triangle MNO is given as follows:

4 + 6 + 7.2 = 17.2 in.

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A plane intersects a right rectangular pyramid. The base of the pyramid has a length that is twice its width. Which of the following shapes could describe the intersection of the plane and the pyramid?

Responses

a square

a triangle

a trapezoid

a non-square rectangle

a non-regular pentagon

Answers

It’s c I promise I did this before

Answer: CCCCCCCCC

Step-by-step explanation:

I need help this is due today

Answers

A is the correct answer
A is the correct answer

Four points are drawn on the coordinate plane and connected with straight lines to form a rectangle. Three of the vertices of the rectangle are located at (2, 1), (2, 4), and (-4, 4). What are the coordinates of the fourth vertex of the rectangle? What are the dimensions of the rectangle? What is the area of the rectangle?

Answers

To find the fourth vertex of the rectangle, we can start by drawing a diagram:

========================================

        |

        |    (2,4)

        |

--------.--------

        |

(?, ?)   |    (2,1)

        |

========================================

We know that opposite sides of a rectangle are parallel, so the fourth vertex must be located on the same horizontal line as the point (2, 1) and the same vertical line as the point (-4, 4). Therefore, the fourth vertex must be located at (-4, 1).

To find the dimensions of the rectangle, we can find the distance between the points (2, 1) and (2, 4) to get the length of one side, and the distance between the points (2, 1) and (-4, 1) to get the length of the other side.

Length = 4 - 1 = 3

Width = 2 - (-4) = 6

So the dimensions of the rectangle are 6 by 3.

To find the area of the rectangle, we can multiply the length and width together:

Area = Length x Width = 6 x 3 = 18 square units.

Length is 4 - 1 = 3

Width is 2+4

Length times width is going to get you 18 which is your final answer

HELPPPPPPppppp.........

Answers

Answer: 36 ft sq

Explanation: use P.E.M.D.A.S. and your equation

The answer your looking for is 36

Solve below pls show work

Answers

Answer:

i believe its 90cm^2

Step-by-step explanation:

20x3/4=15 (reduce side 1)

8x3/4=6 (reduce side 2)

6x15=90 (multiply the sides to find the area)

90cm^2 is the answer

When the fraction below is written as a decimal, how many digits are in the smallest sequence of repeating digits?


1/11

A. 0
B. 1
C. 2
D. 3

Answers

Answer:

Step-by-step explanation:

D

The answer your looking for is D. 3

Pls solve with all steps shown

Answers

Answer:

just do 4in + 2.5 and 5 + 2.5

Step-by-step explanation:

4+2.5=6.5 and 5 + 2.5=7.5

Please answer the question

Answers

Answer:

the water tower is 143 3/4 feet

Step-by-step explanation:

5ft 9in height

4ft silhouette

Convert 9in to ft = 9/12 so height = 5 9/12 = 23/4

Ratio of height to silhouette is (23/4) / 4

X = 100 the height of the building

Set up a proportion (23/4)/4 = X/100

X = 143 3/4 ft

the water tower is 143 & 3 fourths

Thirty-two percent of the jewelry items a company produces are earrings. Which equation represents the relationship between the number (n) of jewelry items that are NOT earrings and the total number (t) of jewelry items produced?
A. n = 0.32t
B. n = 0.68t
C. n = 32t
D. n = 68t
PLS ANSWER!

Answers

Answer:

The percentage of earrings is 32%, which means that the remaining percentage of jewelry items that are not earrings is 100% - 32% = 68%. Therefore, the equation that represents the relationship between the number (n) of jewelry items that are not earrings and the total number (t) of jewelry items produced is: n = 0.68t So, the correct answer is B.

B) n = 0.68t.

If 32% of the jewelry items produced are earrings, then 68% of the jewelry items produced are NOT earrings. Therefore, the equation for n is n = 0.68t.

2-step equation(explination need please and thank you )

x-4/3>10

Answers

Answer:

x > 7.5

Step-by-step explanation:

1. Multiply the reciprocal of 4/3 to both sides (3/4)

- x> 10/1 x 3/4

- x >30/4

2. Simplify the equation:

- x > 30/4

- x > 7 2/4

7 2/4 - 7.5

ANSWER = x > 7.5

Which angles are vertical to each other? Select all that apply.

Answers

Answer:

1 and 4

Step-by-step explanation:

Answer:

A. EAJ and IAH

Step-by-step explanation:

The answer is A. EAJ and IAH because if you notice, angle "EAJ" starts at "E", goes down to "A", and to the right to "J". Now, if you would again notice, angle "IAH" stars at "I", goes up to "A", and to the left to "H".

The definition of a verticle angle are angles opposite each other where two lines cross.

I have attacked an image below of an example of a verticle angle. If you would notice, the image of the vertical angle I attached looks the same as option "A. EAJ and IAH".

Have a nice day! <3

solve systems using elimination (x + 5y= 28) ( -x - 2y = -13)

Answers

y=5 if im not wrong

srry this needs to be 20 chars long for me to post it

Answer:

5

Step-by-step explanation:

5y=28-x

x=-2y+13

5y=28+2y-13

5y=15+2y

3y=15

y=5

Please answer the question

Answers

Answer: x=1

Step-by-step explanation:

Since the angles are vertical that means they have to be equal.

So we can set the two equations equal to each other.

10 - x = 4x + 5

10 = 5x + 5

5 = 5x

x=1

Answer:

10 - x = 4x + 5

10 - 5 = 4x - x

     5  =  3x

      x = 1.6

         x = 1.6      

angle 1 =  10-1.6

            = 8.4

angle 2 = 4(1.6)+5

             = 11.4

Manny uses a sprinkler system to water his lawn. Each lawn sprinkler sprays a distance of 9 feet in every direction. One lawn sprinkler is broken and is only spraying two thirds of the area it usually covers. How many square feet of the yard is being watered by the broken sprinkler? Leave the answer in terms of π.

6π square feet
12π square feet
27π square feet
54π square feet

Answers

54(pi) ft^2

9 is the radius
A = (pi)r^2

A = 81(pi)
81(pi) * 2/3 = 54(pi) ft^2
It would be the first one, A. 9 is the radius and you times it by 2/3 and you get 6

A train is early 1/6 of the time, on time 1/2 of the time, and late 1/3 of the time. Doreen wants to know the probability that the train will be late two times in a row. Explain how two 1-6 number cubes can be used to simulate this situation.

Answers

Answer:

Step-by-step explanation:

1/2 = 3/6 (on time)      

1/3 = 2/6 (late)

1/6 = 1/6 (early)

3 times 2 is 6. You need the same denominators. What you do to the bottom you do to the top. So, 3x2=6 and 1x2=2. Therefore, you have 2/6. The 2 cubes can be used to show the probability of the train being late because we now know it is late 2/6 times and either early or on time 4/6 times.

find the area of the faces of the prism

Answers

Answer:

I think it's 90

Step-by-step explanation:

multiply base x height (9x5)

which = 45

and then multiply that by 2

which = 90

i hope this helped.

90 4 sure is the answer

Please Help Me This is due today

Answers

Answer:

A

Step-by-step explanation:

the formula is A=πr2!!! So since diameter is 10, 10/2 = 5 that means 5 is the radius, 5^2 = 25, 25*π = 78.54

Your welcome!

I agree A is the correct

How many faces does a square pyramid not including it's base

Answers

Answer: A square pyramid has 5 faces, 8 edges, and 5 vertices.

Step-by-step explanation:

The required answer is a square pyramid (excluding the base) has four faces. A square pyramid consists of a square base and triangular faces that meet at a common vertex.

To determine the number of faces excluding the base, we can follow these steps:

Step 1: Identify the number of triangular faces.

In a square pyramid, there are four triangular faces that connect each corner of the square base to the apex (the top vertex). These triangular faces do not include the base.

Step 2: Determine the total number of faces.

In addition to the triangular faces, we need to consider the base of the pyramid. The base is a square, and it is not counted when we exclude the base. Therefore, the number of faces excluding the base is the same as the number of triangular faces.

Step 3: Calculate the number of faces.

Since we determined that a square pyramid has four triangular faces, the square pyramid (excluding the base) has four faces.

Hence, a square pyramid (excluding the base) has four faces. A square pyramid consists of a square base and triangular faces that meet at a common vertex.

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Of the students at Milton Middle School, 216 are girls. If 60% of the students are girls, how many total students are there at Milton Middle school?

you will be the brainliest

Answers

Answer:

360

Step-by-step explanation:

x*60/100=216

60x=21600

x=21600/60

x=360

Answer:

360 students are thee in Milton Middle School.

Step-by-step explanation:

Number of girls in Milton Middle School = 216

Percentage of girls in Milton Middle School = 60%

From the above information we can know that 216 = 60% of Milton Middle School.

1% of students in the school = 216/60

                                                 = 3.6

100% of students in the school = 3.6 * 100

                                                      = 360 students


                                     Or

Total number of students in Milton Middle School = 216/60 * 100

                                                                                       = 216/6 * 10

                                                                                       = 36 * 10

                                                                                        = 360 students


Please mark my answer as the BRAINLIEST. Plsssssssssssssssss

Hope my answer helps you.

:)

Martin charges $10 for every 5 bags of leaves he rakes. Last weekend, he raked 24 bags of leaves. Complete the diagram and the equivalent rates to find how much he earned.

Answers

For 1 bag it is $2 because 10/5=2
Therefore 24 bags will be $48 because 24x2=48
10/5 = 2
24 * 2 = 48

Question Solve for x. −43x+16<79 Drag and drop a number or symbol into each box to correctly complete the solution. Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse. x Response area Response area

Answers

Answer:

Step-by-step explanation:

PLEASE HELP! DUE TODAY

Answers

The answer is 28 units

The equation y=2000x represents the number of miles, y, that the satellite Space Explorer flies in x hours. Find the rate of change.

Answers

Answer: 2000 miles in 1 hour.

Can someone help me with both these questions?

Answers

Answer:

I don't understand

Step-by-step explanation:

where are the answers?

The surface area can be calculated by adding the area of wash face (side) and there is your answer for the second one. Sorry I have no clue what the first one means

Find the probability of showing either
prime number on the first die or multiple of 5 on the second die

Answers

Step-by-step explanation:

The sample space for rolling two dice consists of 36 possible outcomes, as each of the six faces on the first die can be combined with any of the six faces on the second die.

To find the probability of showing either a prime number on the first die or a multiple of 5 on the second die, we can use the principle of inclusion-exclusion.

There are 3 prime numbers on a standard die: 2, 3, and 5. And there are two multiples of 5: 5 and 10. However, we need to be careful not to count the outcome (5,5) twice, as it satisfies both conditions.

So, the probability of showing either a prime number on the first die or a multiple of 5 on the second die is:

P(prime or multiple of 5) = P(prime) + P(multiple of 5) - P(prime and multiple of 5)

P(prime) = 3/6 = 1/2

P(multiple of 5) = 2/6 = 1/3

P(prime and multiple of 5) = 1/36

Therefore,

P(prime or multiple of 5) = 1/2 + 1/3 - 1/36

= 19/36

So the probability of showing either a prime number on the first die or a multiple of 5 on the second die is 19/36, or approximately 0.528.

30 PTS PLS HELP ME One computer desk is located at (7, 2) on the map. Another is located at (7, -8). How many feet separate the two computer desks? Explain or show how you got your answer.

Answers

We know already that desk A and desk B are on the same column, since both coordinates' x factors are 7. So all we need to do now is find the difference of 2 and -8. So, we get the [very simple] equation [tex]2 - (-8) = d[/tex]. Now, when you subtract a negative, it's pretty much just adding, so we can simplify this equation to [tex]2 + 8 = d[/tex], and we all know [tex]2 + 8 = 10[/tex]. So the distance between the two desks is 10 units.

Hope this helps! If there is anything wrong feel free to point it out.

Have a nice day!

So the distance between the two desks is 10 units.

Step-by-step explanation:

desk A and desk B are on the same column, since both coordinates' x factors are 7. So all we need to do now is find the difference of 2 and -8. so we can simplify  So the distance between the two desks is 10 units.

HOPE THIS HELPS HAVE A GREAT DAY GOODLUCK

PLEASE HELP! DUE TODAY

Answers

Answer: Count all the sides and the answer will be 4.5+2+2+4+5.5+1.5+1+7.5, which is equal to 26.5 (I think, I didn’t use a calculator)

The perimeter of the figure shown on the coordinate plane is 56 units.

What is Perimeter?

Perimeter of a straight sided figures or objects is the total length of it's boundary.

Given is a figure.

Perimeter of a figure is the total length of the boundary.

We have to find the length of each of the sides and then add it to get the perimeter.

Each line on the coordinate plane represents 2 units.

Perimeter adding the sides from the bottom, we get,

Perimeter = 2 + 3 + 11 + 8 + 4 + 4 + 9 + 15

                 = 56 units

Hence the perimeter of the figure is 56 units.

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