Greg is opening a car wash. He estimates his cost equation as C = 9000 + 0.09x and his revenue equation as R = 1.85x, where x is the number of cars washed in a six-month period. Find the number of cars that must be washed in a six-month period for Greg to make a profit.

Answers

Answer 1

9000+0.09x = 1.85x

subtract 0.09x from each side

9000 = 1.76x

divide both sides by 1.76

x = 9000/1.76

x = 5113. 64

 he needs to wash 5114 cars to make a profit.



Related Questions

A movie rental website charges $5.00 per month for membership and $1.25 per movie.How many movies did Andrew rent this month if this month's bill was $16.25?

Answers

So to start subtract $5 from $16.25 for the monthly membership
That gives you $11.25
So then you Just divide...
$11.25 divided by $1.25
which gives you 9
So bill rented 9 movies for the month

Hope this helped! :)

A rectangle has one side on the xx-axis and two vertices on the curve y=74+x2. y=74+x2. find the vertices of the rectangle with maximum area.

Answers

Given that a rectangle has one side on the x-axis and two vertices on the curve [tex]y= \frac{7}{4+x^2} [/tex]

We find the vertices of the rectangle with maximum area as follows:

Because of the symmetry of the given curve, the base of the retangle is 2x and the height of the rectangle is y.

Thus, the area of the required rectangle is 2xy where [tex]y= \frac{7}{4+x^2} [/tex]

Thus, [tex]Area=\frac{14x}{4+x^2}[/tex]

For maximum area, we find value of x for which the derivative of the function for the area is equal to zero.

The derivative of the function for the area is given by:

[tex](Area)'= \frac{14(4-x^2)}{(4+x^2)^2} =0 \\ \\ \Rightarrow4-x^2=0 \\ \\ \Rightarrow x^2=4 \\ \\ \Rightarrow x=\sqrt{4}=2[/tex]

Thus, the area is maximum when x = -2 and x = 2

When x = -2,

[tex]y= \frac{7}{4+(-2)^2}= \frac{7}{4+4} = \frac{7}{8} [/tex]

Similarly, when x = 2,

[tex]y= \frac{7}{4+(2)^2}= \frac{7}{4+4} = \frac{7}{8} [/tex]

Therefore, the required vertices are: [tex](-2,0),\ \left(-2, \frac{7}{8} \right), \ \left(2, \frac{7}{8}\right), \ (2, 0)[/tex]
Final answer:

The rectangle with maximum area does not exist as the curve y = 74 + x^2 does not intersect the x-axis.

Explanation:

To find the vertices of the rectangle with maximum area, we need to find the points of intersection between the curve y = 74 + x^2 and the x-axis.

Setting y = 0, we can solve the equation 74 + x^2 = 0 to find the x-coordinates of the vertices.

Since the curve is a parabola facing upwards, there are no points of intersection with the x-axis.

Therefore, the rectangle does not exist.

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Solve. 5t<-15

A) t > 3
B) t < 3
C) t > -3
D) t < -3

Answers

The answer is C)
Hope this helps!!
Get this app callled photo math solve you problems

Kendall is stacking boxes that are 7.5inches tall. Explain how to find the height (in inches)

Answers

You can find the height by finding out the number of boxes and plugging it into an equation.  Height = 7.5(Number of Boxes)

Final answer:

To find the height of stacked boxes, multiply the height of one box (7.5 inches) by the total number of boxes stacked.

Explanation:

Kendall is stacking boxes that are each 7.5 inches tall. To find the total height in inches of the stacked boxes, you would need to multiply the height of one box by the total number of boxes stacked. For example, if Kendall stacks 10 boxes, the calculation would be 7.5 inches x 10, which equals 75 inches. Therefore, the total height of the 10 stacked boxes would be 75 inches.

Which statements are true the ordered pair (1, 2) and the system of equations?

y=−2x+4 
7x−2y=3

Select each correct answer.

When (1, 2) is substituted into the first equation, the equation is true.

When (1, 2) ​ is substituted into the first equation, the equation is false.

When (1, 2) is substituted into the second equation, the equation is true.

When (1, 2) is substituted into the second equation, the equation is false.

The ordered pair (1, 2) is not a solution to the system of linear equations.

The ordered pair (1, 2) is a solution to the system of linear equations.

Answers

this is just a matter of subbing (1,2) into ur equations to see if they make the equations true

(1,2)...x = 1 and y = 2

y = -2x + 4                          7x - 2y = 3
2 = -2(1) + 4                       7(1) - 2(2) = 3
2 = -2 + 4                            7 - 4 = 3
2 = 2 (correct)                     3 = 3 (correct)

when (1,2) is subbed into the first equation, the equation is true
when (1,2) is subbed into the 2nd equation, the equation is true
the ordered pair (1,2) is a solution to the system of equations...and it is a solution to the system because it satisfies both equations...if it would have only satisfied one of them, it would not be a solution to the system of equations


The linear pair postulate states that if two angles form a linear pair, then they are __________ angles.

Answers

Answer:  "supplementary" .
________________________________________________

Answer:

supplementary

Step-by-step explanation:

When adding two numbers, such as 123 and 423, care is taken to first line them up and then add like digits. How does expanding this expression to [(1 × 102) + (2 × 101) + (3 × 100)] + [(4 × 102) + (2 × 101) + (3 × 100)] make the operation more like a polynomial addition problem?

Answers

Think of 10^2, 10^1, and 10^0 as x^2, x^1, and x^0.
When you add polynomials, you can only combine like terms.
When you add expanded numbers, you can only combine like powers of 10.

123 + 423 =

= (100 + 20 + 3) + (400 + 20 + 3)

= (1 * 10^2 + 2 * 10^1 + 3 * 10^0) + (4 * 10^2 + 2 * 10^1 + 3 * 10^0)

= (1 * 10^2 + 4 * 10^2) + (2 * 10^1 + 2 * 10^1) + (3 * 10^0 + 3 * 10^0)

= 5 * 10^2 + 4 * 10^1 + 6 * 10^0

= 500 + 40 + 6

= 546

Solve the equation. How old is Sam?

Sam's age doubled plus 5 is the same as Sam's age tripled minus 1.

Question 5 options:

Sam is 6yrs old.



Sam is 4 yrs old.


Sam is 12 yrs old.


Sam is 5 yrs old.
\\
@Mochimin


Answers

6 years old. 6x2=12+5=17
6x3=18-1=17
A•2+5-3 is what I would say

HELP PLEASE ASAP!
BRAINLIESTTTTTTTTTTTTT

Answers

Can you make it more zoom? Sry i can't see well

Use the information about sports in the photo to explain how inequalities can be used to describe school sports. Include an inequality describing the number of schools needed to add girls’ track and field so that the number is greater than the number of schools currently participating in girls’ basketball.

Answers

what photo ? there's no photo 


Given: M is the midpoint of LN; LM =8 prove:LN=16

Answers

A midpoint divides a segment into two congruent segments.

If LM = 8, then MN = 8.

Adding both together, you would get 16 for the length of LN.

The proof of LN= 16 is shown below:

What is midpoint?

The midpoint formula is applied when one is required to find the exact center point between two defined points. So for a line segment, use this formula to calculate the point that bisects a line segment defined by the two points.

Given:

LM= 8

and M is the midpoint of LN

So, the line LN will be break into two equal parts LM and MN

then we can write

LM= MN= 8

Now,

LN= LM+ MN

LN= 8+8

L=16

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When the federal reserve wants more money to be printed, which agency will be in charge of printing it?

Answers

The U.S. Treasury would be in charge of printing it :)

Answer:

The U.S. Treasury.

Step-by-step explanation:

The coordinates of point D are (7, 4) and the coordinates of point E are (1, −3) .

What is the slope of the line that is perpendicular to DE¯¯¯¯¯?



Enter your answer as a simplified fraction in the box.

Answers

ANSWER

[tex]- \frac{6}{7} [/tex]

EXPLANATION

The given points are

[tex](x_1,y_1)=(7,4)[/tex]
and

[tex](x_2,y_2)=(1,-3)[/tex]

The formula for finding the slope is given by,

[tex]slope = \frac{y_1-y_1}{x_1-x_1} [/tex]

We substitute the points to obtain,

[tex]slope = \frac{ - 3 - 4}{1 - 7} = \frac{7}{6} [/tex]

The slope of the line that is perpendicular to DE is the negative reciprocal of

[tex]\frac{7}{6} [/tex]

Thus, the line perpendicular to DE has slope,

[tex] \frac{ - 1}{ \frac{ 7}{6} } =-\frac{6}{7} [/tex]

The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 −7 0 −1 1 5 g(x) g(x) = 5x − 4 Part A: Write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points) Part B: Which function has a greater y-intercept? Justify your answer. (4 points)

Answers

Question A:

Rewriting the table for f(x):

x      -1       0      1
f(x)   -7      -1      5

Notice that for every increase of one unit in 'x', there are an increase 6 units on f(x). Hence, the gradient of the slope of f(x) is 6. 

g(x) = 5x - 4 ⇒ This function follows the general form of the straight line equation, y = mx + c, where 'm' is the gradient and 'c' is the y-intercept.
Hence, the gradient of the slope of g(x) is 5.

The slope of f(x) is steeper than the slope of g(x).

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

Question B:

The y-intercept is the value of y where a straight line crosses the y-axis (or when x is zero).

From the table of f(x), the y-intercept is -1 (this is the value of 'y' when 'x' is zero)

From the given function g(x) = 5x - 4, the y-intercept is -4. 

f(x) has a greater y-intercept.



The length of a rectangle is 4.2 cm more than 2 times the width. If the perimeter of the rectangle is 42.6 cm, what are its dimensions?

Answers

Perimeter= add all

42.6 = 6w + 8.4

34.2 = 6w

w = 5.7

L= 15.6

Factor the four-term polynomial.
xz + x + yz + y
A. (z - y)(x + 1)
B.(x - y)(z + 1)
C.(x + y)(z + 1)

Answers

group like terms , factor out common variable.

(xz+x) + (yz+y)
x(z+1) + y(z+1)

factor out (z+1)

= (z+1)(x+y)
= solution C.

Of the birds in Monica's pet shop, 1/5 are pigeons. Of the pigeons, 1/3 are white. Look at each expression. Can it be used to find the fraction of birds in Monica's pet shop that are white pigeons?

Answers

1/15 of the birds are white

1/15.

The expression that can be used to find the fraction of birds in Monica's pet shop that are white pigeons is:

1/5 x 1/3 = 1/15

This calculation is derived by multiplying the fraction of pigeons in the pet shop (1/5) by the fraction of white pigeons among pigeons (1/3).

Simplify this problem: X3 / X.

Answers

Assuming X3 means x cubed, x3/x equals x squared, with the restriction that x cannot equal 0
Hello There!

It would be x².
The question is x³/x.
X with no power is x to the power of one.
When dividing powers you subtract them.
3 - 1 = 2,
Therefore, making your answer x²

Hope This Helps You!
Good Luck :) 

- Hannah ❤ 

PLEASE HELP ME, I NEED IT.
Which of the following is the correct graph of the compound inequality 4p + 1 > −7 or 6p + 3 < 33?

A. a number line with open circles at negative 2 and 5 with shading in between.
B. number line with open dot at negative 2 with shading to the left and an open dot at 5 with shading to the right
C. number line with shading everywhere.
D. number line with open dot at negative 2 and a closed dot at 5 with shading in between.

Answers

The answer should be A, I do believe. I hope this helps.

The answer is B :)

I hope this helped

Rules for Plotting Points:
1) Start at the origin: _________
2) If your x-value is ___________, move right; if it is ___________, move left;
if it is _____, don’t move.
3) If your y-value is ___________, move up; if it is ___________, move down;
if it is _____, don’t move.

Answers

1. (0,0)
2. Positive, Negative, 0
3. Positive, Negative, 0
I hope this helps.
1) 0
2) positive, negative, 0
3) positive, negative, 0

Joel earns $1,700 per month. If he spends $425 on rent each month, what percent of his income does he spend on rent? A. 20% B. 331/3% C. 40% D. 25%

Answers

To get this answer, we do the part divided by the whole and multiply by 100 to get a percentage.

425 / 1700 = 0.25
0.25 x 100 = 25. 

25% is your answer, letter D. 

The solution to -5m = -20 is negative.

True or false

Answers

m=4, false. -5*4=20.

False

 a negative number times a negative number would have a positive answer

jasmine has $15 dollars and save $2.50 every month . radha has $0 and save $3.50 every month. jasmines savings after x months can be represented by the function f(x)=2.5x+15. radahs savings after x months can be represented by the function g(x)=3.5x after how any moths will they both have the same amount in savings? find the value of x which f(x)=g(x)

Answers

2.5x+15 = 3.5x

subtract 2.5x from each side

15 = x

they will have the same amount after 15 months

Solomon is taking out a 5,320 two year loan with an APR of 10.25%. What will the finance charge be for this loan to the nearest dollar?

Answers

We know that APR means Annual Percentage Rate, so in one year we should pay that rate for the loan amount: $5,320 * 10.25 % = $5,320 * 10.25/100 = $545.30 per year Due that Solomon took the loan for 2 years, the finance charge will be: $545.30 * 2 year = $1,090.60 Rounded to the nearest dollar is: $1,091 That means after two year Solomon will have returned the loan plus the charge: $5,320 + $1091 = $6,411

find the x and y intercepts -3x-6y=12

Answers

Answer:

x-intercept: -4y-intercept -2

Step-by-step explanation:

The x-intercept is found where the graph crosses the x-axis, at y=0. Substituting that into the equation and solving for x, we get ...

  -3x = 12

  x = 12/-3 = -4 . . . . . x-intercept = -4

The y-intercept is found where the graph crosses the y-axis, at x=0. Substituting that into the equation and solving for y, we get ...

  -6y = 12

  y = 12/-6 = -2 . . . . . y-intercept = -2

_____

A graphing calculator confirms these values.

You have a rectangular vegetable garden in your backyard that measures 15 feet by 10 feet. You want to double the area of the garden by adding the same distance x to the length and width of the garden. Find the value of x and the new dimensions of the garden.

Answers

Final answer:

To double the area of the rectangular vegetable garden, we need to add the same distance, x, to the length and width. The value of x is 10 feet, and the new dimensions of the garden are 25 feet by 20 feet.

Explanation:

To double the area of the garden, we need to add the same distance, x, to both the length and width of the garden. The original dimensions of the garden are 15 feet by 10 feet, with an area of 150 square feet. To double the area, we set up the equation 2(15+x)(10+x) = 2(15)(10). Solving this equation gives us the value of x and the new dimensions of the garden.

Expanding the equation, we have 30x + x² + 300 = 300. This simplifies to x² + 30x - 300 = 0. Factoring this quadratic equation, we get (x - 10)(x + 30) = 0. So x = -30 or x = 10. We discard the negative value since distance cannot be negative, so x = 10 feet.

The new dimensions of the garden are 15+10 = 25 feet and 10+10 = 20 feet.

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what are the steps for using a compass and a straightedge to construct the bisector of

Answers

With one point of the compass on the vertex of the angle, draw an arc that intersects both sides of the angle. Draw an arc from each of these points ofintersection so that the arcs intersect in the interior of the angle. The compass needs to stay open the same amount throughout this step

ANSWER:

How to construct a Line Segment Bisector AND a Right Angle

using just a compass and a straightedge.

STEP-BY-STEP EXPLANATION:

Steps:

1)Place the compass at one end of line segment.

2)Adjust the compass to slightly longer than half the line segment length

3)Draw arcs above and below the line.

4)Keeping the same compass width, draw arcs from other end of line.

5)Place ruler where the arcs cross, and draw the line segment.

Anna has 10 to the 2nd power quarters. Jazmin has 10 to the second power dimes Who has more money, Anna or Jasmine? How much more? Explain

Answers

Anna has more money... We don't have to do messy calculations for this... Both have 10 to the 2nd power "some amount". 10 to the second power is 100. So they both have 100 coins. 

A quarter is 25 cents, while a dime is only 10 cents. Since they both have the same amounts of coins, the one with 100 quarters has more money, so Anna has more money than Jasmine. 

Now, we need to figure put by how much! 100 quarters is one hundred 25 cent coins. 100*25 = 2500. That is 25 dollars. Whereas, Jasmine has one hundred times 10 cents, which is 1000 cents. This is 10 dollars. 

So, Anna has 15 more dollars than Jasmine. 


This question is based on the concept of logical reasoning.Therefore,they both have the same amounts of coins, the one with 100 quarters has more money.Thus, Anna has more money than Jasmine.

Given:

Anna has 10 to the 2nd power quarters. Jazmin has 10 to the second power dimes.

We need to calculate the who has more money, Anna or Jasmine.

According to the question,

Anna has 10 to the 2nd power quarters.

In mathematically expressed as,

[tex]\bold{10^2 = 100}[/tex] quarters

Now, Jazmin has 10 to the second power dimes.

In mathematically expressed as,

[tex]\bold{10^2 = 100}[/tex] dimes

So,they both have 100 coins. But, we know that quarter is 25 cents, while a dime is only 10 cents.

Anna has 100 quarters =  [tex]\bold{100 \times 25 = 2500}[/tex]. That is 25 dollars.

Jasmine has 100 dimes =    [tex]\bold{100 \times 10 = 1000}[/tex]. This is 10 dollars.

Therefore,they both have the same amounts of coins, the one with 100 quarters has more money.Thus, Anna has more money than Jasmine.

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https://brainly.com/question/15169469

What could the answer be?

Answers

i don't know ???????

A master electrician earns $62 per hour. His apprentice earns $40 per hour. The master electrician works 3 hours more than the apprentice. If together they are paid $492, how much does the master electrician earn?
A) $292
B) $312
C) $332
D) $372

Answers

Let x be the number of hours the master electrician works and y the numbers of hours his apprentice works.

The master electrician earns $62 per hour, which means that he earns 62x.
His apprentice earns $40 per hour, which means that he earns 40y.

Together they are paid $492, so we can get the equation:
62x + 40y = 492.

We know that the electrician worked 3 hours more than his apprentice. So he worked x = y + 3 hours. Now let's replace x by its new value in the previous equation.

62x + 40y = 492
62(y+3) + 40y = 492
62y + 186 + 40y = 492

Now we need to put variables apart and numbers apart, so we subtract 186 from both sides of the equation:
62y + 40y + 186 - 186 = 492 - 186
102y = 306

Now we divide both sides by 102
(102y)/102 = 306/102
y = 3

So the apprentice worked 3 hours.
As we already mentioned, the electrician worked 3 hours more than his apprentice.
So he worked x = y + 3 = 3+3 = 6 hours.

The master electrician earns $62 per hour. Since he worked 6 hours, he earns 62 * 6 = 372 dollars.

So the master electrician earns $372 (Option D)

Hope this helps! :)

Answer:

The answer is D)$372

Step-by-step explanation:

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