(I will mark brainliest if correct!! so PLEASE HELP!!!)
Matt has started a car washing business to save money for college. each week he washes three more cars than the week he did before.

Part A: Matt started by washing 6 cars his first week in business. Write an explicit formula that can be used to find the number of cars he washed on any given week.
A. 6+3n
B. 6(3n-1)
C. 6+3(n-1)
D. 3+6(n-1)
Part B: How many cars will Matt wash on his 11th week in business?
A. 17
B. 36
C. 39
D. 66

(if you don't want to answer part B I just really need Part A but it would be very helpful if you did both parts)

Answer:

2 1/4

Step-by-step explanation:

Took the test, and got it right.

To calculate the percent increase in annual usage of cell phones, we can use the following formula:

Percent increase = [(new value - original value) / original value] x 100

where the new value is the current year’s usage and the original value is last year’s usage.

In this case, Nick found that residents used their cell phones for 217,470 minutes last year and 434,940 minutes this year. So we can plug these values into the formula:

Percent increase = [(434940 - 217470) / 217470] x 100

Percent increase = 100%

Therefore, there was a 100% increase in annual usage of cell phones.

I hope that helps! Let me know if you have any other questions.

Answer:

6670 divided by 2=3335 SOOOO the answer is  :3335

Step-by-step explanation:

If they used 50 percent of their phone time, they're using half of it. Therefore, 1/2 of 6670 is 3335.   YW

Answer:

b

Step-by-step explanation:

Let's find the unit rates

Talks-A-Lot charges $0.04666666666 ($0.7/15 min)

Reaching Out charges $0.05 ($1/20 min)

Talks-A-Lot offers the cheaper rate

"Talk-A-Lot" phone company offering the cheaper rate.

The method in which first we find the value of one unit and then the value of the required number of units is known as the Unitary Method.

According to the given question.

Amount of money charged by Talks-A-Lot phone company for

15 minutes = $0.70

⇒ Amount of money charged by Talks-A-Lot phone company for

1 minute = \(\frac{0.70}{15}\) = $0.0466

Also,

The amount  of money charged by Reaching out phone company for 20 minutes = $1.00

⇒ Amount of money charged by reaching out phone company for 1 minute = \(\frac{1.00}{20}\)= $0.05

Hence, "Talk-A-Lot" phone company offering the cheaper rate.

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The function for the points are  y = -15x - 5

From the information given, we have that;

The points are;

(1/3,0) (-2 3/4,0) and (0,-5)

Using the point-slope form of a linear equation, we have;

y - y₁ = m(x - x₁)

Such that;

Using (1/3, 0) and (0, -5), we have that the slope is;

m = (0 - (-5))/0 -1/3)

expand the bracket

= 5 / (-1/3)

= -15

Now, take any of the given points and substitute the values

Using (1/3, 0), we get;

y - 0 = -15(x - 1/3).

y = -15x - 5.

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The function for the points solved by  (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)

We have given the points:

(1/3,0) (-2 3/4,0) and (0,-5)

Using the formula of linear equation

\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)                                                          

Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)

that is 1/3 = \(a\), 0 = \(a_{1}\) and

0 = \(b\), -5 = \(b_{1}\)

\(x\) refers to the slope of line (take any variable)

Now for finding the value of \(x\),

\(x=a-a_{1}/b-b_{1}\)

inserting the values,

\(x=[0-[-5]]/[0-1/3]\\x= -15\)

Substitute the value of \(x\) in the equation

\(a-0=-15[b-1/3]\)

By simplifying the equation, we get

\(a=-15b-5\)

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Answer:

x = 6

Step-by-step explanation:

First, add 8 to both sides.

4x - 8 = 16

4x - 8 + 8 = 16 + 8

4x = 24

Then, divide 4 from each side.

4x ÷ 4 = 24 ÷ 4

x = 6

Hope this helps.

Answer:

x = 6

Step-by-step explanation:

Well to solve for x in,

4x - 8 = 16

We use the commutative property which is the moving of numbers and variables to either side of the equation.

So 4x - 8 = 16

+8 to both sides

4x = 24

Divide 4 by both sides

x = 6

Thus,

x is 6.

Hope this helps :)

Answer: D

This answer choise show the true identity of the original number.

Answer:

.

Step-by-step explanation:

A,0.

B. To plot the three points well, you need to look at where the numbers are. Now, lets says its 1 -1 go to where it says -1 and find 1. For -1 1.25 go to the 1 and now split a line into 1/4 making it 1.25. Last but not least go to -2 and cut a line into 3/4.

Hope this helps<3.

Answer: -11

Step-by-step explanation: 5 + ? - 2 cant equal -8 so figure if you do a negative number summed by 5 so i did 5 + negative 11 which got me negitave 6 then you take away two and you get -8

Answer:

D

Step-by-step explanation:

just multiply the three over four inches with seven and a half to get the accurate measurements

Answer: -36 feet

Step-by-step explanation:

72-18 = 54 feet ascended

54 feet / 3 ascents = 18 feet per ascent

18 feet * 2 ascents = 36 feet

-72+ 36 = -36 feet

Answer:

Step-by-step explanation:

form. Meaning you need make both fractions improper

Step-by-step explanation:

2x-14=8

2x=8+14

2x=22

x=22/2

x=11

hope it helps

Answer:

5 - 25= -20

Step-by-step explanation:

Answer: -20

Step-by-step explanation:

5-25=-20

Answer:

1234567891011121314151617

Answer:

where is the question?

Step-by-step explanation:

I'm not entirely sure so if I get this wrong please don't be mad.

The list has 26 people there for personal reasons, and 49 people there for business reasons. Sorry if I'm wrong.

Answer:

8 and 29

Step-by-step explanation:

Answer:

The first option, V ≈ 1607.7 in²

Step-by-step explanation:

Find the volume of the given cylinder.

\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)

Given:

r = 8 in

h = 8 in

π = 3.14

Find:

V = ?? in³

\(\hrulefill\)

Now solving,

Substitute the given values into the formula:

=> V = (3.14)(8)²(8)

Using a calculator to simplify:

=> V = 1607.68 in²

Rounded to the nearest tenth:

∴ V ≈ 1607.7 in²

Thus, the first option is correct.

Answer: the answer to this question is 45

Step-by-step explanation:

3 times 3 times 5 = 45

first do 3 times 3 which equals 9

then you do 9 times 5 which equals 45

so that means your answer is 45 square meters.

Answer: 7

Step-by-step explanation:

thomas =x

x=(19-5)/2

x=14/2

x=7

Proof

7x2+5=19

Answer: The initial cost to the company is $-75.

Step-by-step explanation:

To determine the initial cost to the company using the equation provided (c = 5.25t - 75), we need to understand what each variable represents:

Since the initial cost refers to the cost at the beginning (t = 0), we can plug t = 0 into the equation and solve for c:

c = 5.25(0) - 75

c = 0 - 75

c = -75

In this context, the initial cost to the company is $-75. It might seem unusual for the cost to be negative; however, this could be interpreted as the company having an initial credit or saving of $75 before any time has been spent on the project. Please note that the specific interpretation of this negative value depends on the context of the problem and the real-world situation being modeled by the equation.

Step-by-step explanation:

You put them together to form a bigger number then break it down. sorry if it doesn't make sense.

Btw do you form the number if so I'll help just give the number and I'll break it down for you. :)

Answer:

A function is a mathematical relation in which each input (domain value) is associated with exactly one output (range value). In other words, for a relation to be a function, each input can have only one corresponding output. Let's analyze the given pairings:

(a person’s age in years, that same person’s height in inches) - This can be a function because one person's age in years should correspond to a single height in inches.

(a person’s weight in pounds, that same person’s height in inches) - This can also be a function because one person's weight in pounds should correspond to a single height in inches.

(a person’s height in centimeters, that same person’s height in inches) - This can be a function because one person's height in centimeters should correspond to a single height in inches.

(a person’s telephone number, that same person’s height in inches) - This may not necessarily be a function. It's possible for two different people to have the same height in inches but different telephone numbers.

So, the pairings that always describe a function are:

(a person’s age in years, that same person’s height in inches)

(a person’s weight in pounds, that same person’s height in inches)

(a person’s height in centimeters, that same person’s height in inches)

These three pairings meet the criteria of a function, where each input corresponds to a unique output.

The pairing that always describes a function is option C. (a person’s height in centimeters, that same person’s height in inches)

A pairing describes a function when each unique input (domain element) is associated with exactly one unique output (range element). In other words, there should be no ambiguity or multiple outputs for a single input. Let's analyze the given pairings:

1. (a person’s age in years, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same age, but they might have different heights. So, there can be multiple outputs for the same input (age).

2. (a person’s weight in pounds, that same person’s height in inches): Similar to the first pairing, this may not always describe a function because different people can have the same weight but different heights.

3. (a person’s height in centimeters, that same person’s height in inches): This pairing describes a function because for each unique height in centimeters, there is only one corresponding height in inches.

4. (a person’s telephone number, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same telephone number, but they might have different heights. So, there can be multiple outputs for the same input (telephone number).

So, the pairing that always describes a function is: (a person’s height in centimeters, that same person’s height in inches)

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What is the value of x?

Answer: x=148

the ratio of the scale drawing is

1 inch on the drawing represents 180 feet in real life.

To determine the ratio of the scale drawing, we need to first find the length of the building on the scale drawing. We know that the actual length of the building is 60 feet, and the length of the building on the scale drawing is 4 inches. We can set up a proportion to find the length of the building on the scale drawing:

Actual length / Length on scale drawing = Scale factor

We can plug in the values we know:

60 feet / Length on scale drawing in inches = Scale factor

To solve for the length on the scale drawing in inches, we can cross-multiply:

60 feet * 1 inch / Scale factor = Length on scale drawing in inches

Simplifying:

Length on scale drawing in inches = 60 feet * 12 inches / Scale factor

We know that the length on the scale drawing is 4 inches, so we can plug that into the equation:

4 inches = 60 feet * 12 inches / Scale factor

Solving for the scale factor:

Scale factor = 60 feet * 12 inches / 4 inches

Scale factor = 180

74 meters

Step-by-step explanation:

The difference in Emile and Henry's speed is 1.5, and the lead for Henry is 45 meters, so 45÷1.5= 30 seconds which means Henry will go another 30 meters at 1 meter per second.

2. To make it a close race we want Henry to go a longer distance than Emile, so make it 74 meters, which means Emile will go only have 45+29 = 74 seconds to get to 74 meters, but Henry only have 29 seconds in total = 29*2.5 = 72.5 meters.  

The surface area of cone B is 387 square feet.

It is a shape of a christmas tree where there is a base of radius r and a top point called the apex.

We have,

Since the cones are similar, their corresponding dimensions are proportional.

In particular, the ratio of their radii is equal to the ratio of their surface areas.

Now,

Let S be the surface area of cone B, then we have:

ratio of radii = 16.2/5.4 = 3

ratio of surface areas = S/43

Since the ratio of surface areas is equal to the ratio of radii squared,

We have:

3² = S/43

9 = S/43

S = 9 x 43

S = 387

Therefore,

The surface area of cone B is 387 square feet.

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