Dave uses the function P(d)=20d-20 to calculate the net profit of his dog walking business. Where P(d) is the net profit in dollars, and d the number of dogs he walks.

Interpret the meaning of the equation below using the context of the problem.
P(3)=40
Dave's profit is ____ when he walks _____dogs.

Answers

Answer 1
Dave profit is 40 when he walks 3 dogs

Related Questions

Solve the following system using substitution.
6x + 3y= - 12
y= -2x -6
(3,-12)
no solution
infinitely many solutions
(2,0)

Answers

Answer:

No solution

Step-by-step explanation:

if you replace the y with -2x-6 into the first equation, you will get rid of the x's which it gives you the hint that there is no solution.

place the following in order least to greatest

square root of 11
square root of 40
6
5​

Answers

Answer:

sqaure root of 11

5

6

square root of 40

Step-by-step explanation:

square root of 11- 3.31

sqaure root of 40- 6.32

6

5

hope this helps :)

In the diagram below, find the value of y.

Answers

Answer:

y=130

Step-by-step explanation:

1) combine all like terms for the inside angles of the triangle

(3x-19) + (4x+8) + (x+7)3x-19+4x+8+x+78x-4

2) because the sum of all angles = 180 add that to the sum of all like terms

8x-4=180add 4 on both sides and divide both sides by 8this should be x=23

3) now you replace the x's with 23

(3(23) -19)69-1950

4) now we know that (3x-19)=50

5) take 180 and subtract 50

this is because y and (3x-19) creates a supplementary angle which also equals 180

6) 180-50=130

Which one of these is a factor in this equation?

Answers

Answer:

A

Step-by-step explanation:

Because when a expression or number is multiplied by another expression or number it makes a equation

What is the result of solving this equation for x?

y−b=m(x−a)

Answers

Answer:

( y-b) / m    +a = x

Step-by-step explanation:

y−b=m(x−a)

Divide each side by m

(y−b)m=m/m(x−a)

( y-b)/m  = x-a

Add a to each side

( y-b) / m +a = x-a+a

( y-b) / m    +a = x

Answer:

y − b = m(x − a)

y − b = mx - ma

(y - b) / m = x - a

((y-b)/m) + a = x

let America be America meaning

Answers

Answer:

Let America be America Again Analysis In Langston Hughe's poem “Let America be America Again” he talks about how America should return to the way that it was perceived to be in the dreams before America was truly America. Throughout the poem, he uses various methods to evoke the patriotic images and dreams that he feels America should and will eventually be. Hughes states that America is supposed to be a place of equality for everyone including both white and colored people.

Step-by-step explanation:

If it was helpful can I plz have a brainliest

What is the value of h in the figure
below?

Answers

Answer:

12

Step-by-step explanation:

according to the pythagorous theorem

Graph the line with slope of 53
5/3 and goes through the point (2,1).

Answers

Answer:

We kindly invite you to see the image attached for further details.

Step-by-step explanation:

From Analytical Geometry we get that linear functions can be found after knowing a point and its slope. The standard form of a linear function is represented by the following formula:

[tex]y =m\cdot x +b[/tex] (Eq. 1)

Where:

[tex]x[/tex] - Independent variable, dimensionless.

[tex]y[/tex] - Dependent variable, dimensionless.

[tex]m[/tex] - Slope, dimensionless.

[tex]b[/tex] - y-Intercept, dimensionless.

At first we need to calculate the y-Intercept, which is cleared within (Eq. 1):

[tex]b = y-m\cdot x[/tex]

If we know that [tex]y = 1[/tex], [tex]x = 2[/tex] and [tex]m = \frac{5}{3}[/tex], then the y-Intercept of the linear function is:

[tex]b = 1-\left(\frac{5}{3} \right)\cdot (2)[/tex]

[tex]b = -\frac{7}{3}[/tex]

Line with a slope of [tex]\frac{5}{3}[/tex] that goes through the point (2, 1) is represented by [tex]y = \frac{5}{3}\cdot x -\frac{7}{3}[/tex].

Lastly, we graph the line by using a plotting software (i.e. Desmos), whose result is included below as attachment.

Evaluate [7] + | - 3|

Answers

Answer:

=[7]+|-3| solve for the absolute value {-3 ->3}

=7+3

=10

Answer:

10

Step-by-step explanation:

Whenever you see those numbers in those specific brackets, it's asking for the absolute value of that number.

The absolute value is the distance from 0.

So, if you see -3 in those brackets, it's 3 because both -3 and 3 are 3 spaces from 0.

So 7 + 3 = 10.

Find the slope.of the line that passes through (7,5) and (3,12) simplify it

Answers

Answer:

there's no way to simplify 7/-4

in other formula it may be -4/7 but still can't be simplify.

in other way it will become a decimal

Step-by-step explanation:

1. Remember to make it as if it was a table.

2. Then you see if your #s are going decreasing or increasing(if they are decreasing that's a negative right there)

3.In the formula that I did the result of y is going over x but still works ;v

Richard had his car repaired at a body shop.
The parts cost $100.
The technician charged $52 per hour.
. His total bill was $308.
How many hours did the technician work on Richard's car?

Answers

Answer:

5.9 hours

Step-by-step explanation:

The total cost is 308,
Then you have to subtract the cost of the car parts which is 100
That will give you $208

After that you have to divide 52 from 208, this will give you 4.
Therefore the technician worked on Richards car for 4 hours.

Simplify 15+(2/3x)−7−(5/6x).

PS
The / is not a division sign. 2/3 and 5/6 are fractions

Answers

It gave me 48-x/6 hope it helps

What is 32 squared root

Answers

Answer: 4√2

Step-by-step explanation:

Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.

Try multiplying 4*4*2 = 32. So you would bunch up those two 4's and so it would be the front of the answer. Then you would square root 2 because it is remaining.

~I hope I helped you! :)~

Solve
7 1/2 ÷ (4 1/2 - 5 1/8)

Answers

Answer:

-12

Step-by-step explanation:

Answer:

[tex] \frac{71}{2} \div ( \frac{41}{2} - \frac{51}{8} )[/tex]

[tex] \frac{71}{2} \div ( \frac{164 - 51}{8} )[/tex]

[tex] \frac{71}{2} \div \frac{113}{8} [/tex]

[tex] \frac{71}{2} \times \frac{8}{113} [/tex]

[tex] \frac{284}{113} [/tex]

PLSSS HELP ME!!!!! I WILL!!!! MARK!!!!!

Answers

Answer:

23.1

Step-by-step explanation:

(4.2)(11)(0.5)

3/4(x+8) > 1/2(2x+10)

Answers

3x/4+6 and x+5
Pls mark brainliest

which ordered pairs is a solution to the equation y=4x-17? (it’s more then one )

Answers

Answer:

(1,-13) (4,-1) (7,11)

Step-by-step explanation:

Those are all the correct order pairs!!

hope this helps!

Keiko runs 6 miles in 55 minutes. At the same rate, how many miles would she run in 44 minutes?​

Answers

Answer:

4.8 miles

Step-by-step explanation:

Set up a ratio, Kelvin.

 

6/55 = x/44

 

55x = 6(44)

 

55x = 264

 

x = 264/55 = 4.8 miles

2/9x + 3 > 4 5/9
what graph shows the values that satisfy the expression

Answers

Answer:

Step-by-step explanation:

In graphing inequalities, the first thing to do is graph the equation first irregardless of the inequality symbol. In the given problem, the equation to be graphed is f(x) = 2/9x + 3. Since it has a general form of y=mx + b, this is a linear function. Plot the graph by assigning arbitrary points of x, then you get the corresponding f(x) values. Graph the x values against the f(x) values. The blue line the attached picture will be formed.

Next, you solve the equation by finding x. Just don't mind the inequality symbol:

2/9 x + 3 > 4 5/9

2/9x > 4 5/9 - 3

2/9x > 14/9

x > 14/9 ÷ 2/9

x > 7

Hence, the value of x must be greater than 7. To show this in the graph, find the line where x=7. Create a partition using that line, then shade the rest of the portion where x is greater than 7 until infinity.

3
Solve each equation.
r - 10 = 4

Answers

Answer:

r=14

Step-by-step explanation:

14-10=4

10+4=14

14-4=10

tada

Answer:

14

Step-by-step explanation:

r - 10 = 4

r = 4 + 10

r = 14

hope this helps you!

Sarah is doing research on the average age of first-year resident physicians. She wants her estimate to be accurate to within 1 year. From past studies, she knows the population standard deviation is 8.265. How many first-year residents must she survey to be 95% confident?

Answers

Answer: The number of first-year residents she must survey to be 95% confident= 263

Step-by-step explanation:

When population standard deviation ([tex]\sigma[/tex])  is known and margin of error(E) is given, then the minimum sample size (n) is given by :-

[tex]n=(\dfrac{z^*\sigma}{E})^2[/tex], z* = Two-tailed critical value for the given confidence interval.

For 95% confidence level , z* = 1.96

As, [tex]\sigma[/tex] = 8.265, E = 1

So, [tex]n= (\dfrac{1.96\times8.265}{1})^2 =(16.1994)^2\\\\= 262.42056036\approx263\ \ \ [\text{Rounded to the next integer}][/tex]

Hence, the number of first-year residents she must survey to be 95% confident= 263

I drive at 55 miles per hour, and my trip will takr 5 hours. Proportional or non proportional

Answers

Answer:

Proportional

Step-by-step explanation:

Here, we want to know if the distance at the given time will be proportional

What we will do here is to simply divide the distance by the time

Mathematically, that will be 55 miles/ 5 hours = 11 miles / hour

So this means that in an hour, 11 miles will be traveled

This expression is proportional

At a sale, the $39.97 original price of the shirt was marked down to $15.99. About
what percent of decrease is this?

Answers

249.96

Step by step solution

39.97x100 divided by 15.99 gives the the answer

Help urgent!!!!!!!!!!!

Answers

Answer:

X= -5x hope this helped :)

in which quadrant does (-3, -1.5) and (-3, 8.5) lie?

Answers

Answer:

The first one would be the third one and the second one would be the second one.

Step-by-step explanation:

The first quadrant is a (Positive, Positive), the second one is a (Negative, Positive), the third one is a (Negative, Negative) and the fourth one is a (Positive, Negative)

A laptop computer at Best Buy costs $1250. The sales tax in Virginia is 5.3%. How much will you pay in total for the laptop including tax?

Answers

Answer:

66,25

Step-by-step explanation:

Answer:

$1316.25

Step-by-step explanation:

1250 * 5.3% = 66.25

1250 + 66.25 = 1316.25

The graph of a function is shown below 8 Which inequality represents the domain of the function?​

Answers

nuts gotten you really thought 10$1

A juice shop uses 1/2 of a bag of oranges to make 5 glasses of orange juice. What fraction of a bag of oranges did the shop use to make one glass?

Answers

Answer: 0.1 OR 1/10

Step-by-step explanation:

Think about it: There's 1/2 bag of oranges, and you wanna know what number of oranges used in the juice. Take 1/2, and divided it by 5. You get 0.1, then you should turn it into a fraction, giving you 1/10.

Answer: 0.1 OR 1/10

Step-by-step explanation:

(−2,−3) after a translation right 2 units and up 4 units?

Answers

Answer:

(0,1)

Step-by-step explanation:

moving right 2 units makes it (0,-3)

moving up 4 units makes it (0,1)

What is the equation of the line that is parallel to the line y=3x-11 and
passes through the point (1, -6)?
O A. y=3x-9
B. y=-3x-3
O C. y=-1/3x-17/3
O D. y= 3x + 6

Answers

Answer:

A

Step-by-step explanation:

Answer:

A. y = 3x - 9

Hope this helps!

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