Create Write a real-world problem that can be
solved using the equation 9 + 4x = 21 - 2x

Answers

Answer 1
1. you have to subtract 9 from both sides. 21-9= 12
2. you have to add 2x to both sides. 4x+2x= 6x
3. 6x divided by both sides =
4.x=2
Answer 2

The required real-world problem is below that can be solved using the equation.

What is the equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

A construction company is building a new housing development and wants to know how many houses they need to build to reach a certain profit margin. They know that each house costs $9 to build and they want to sell each house for $21.

If they build x number of houses, the equation to calculate their profit is:

21x - (4x + 9) = profit.

To reach a certain profit margin, the company can set that equation equal to a specific value and solve for x.

Learn more about the equation here:

brainly.com/question/10413253

#SPJ5


Related Questions

An EWMA control chart uses λ = 0.5. What is the value of L such that the control limits of this EWMA control chart in the steady state have the same width with a 3σ X_bar control chart?

Answers

Answer:

5.199

Step-by-step explanation:

From the  information provided;

We know that λ = 0.5.

However, the control limits for a steady-state EMWA control chart is:

[tex]\mu_o \pm L \sigma \sqrt{\dfrac{\lambda }{(2-\lambda )n}}[/tex]

where;

[tex]UCL = \mu_o + L \sigma \sqrt{\dfrac{\lambda }{(2-\lambda )n}}[/tex]

[tex]LCL = \mu_o- L \sigma \sqrt{\dfrac{\lambda }{(2-\lambda )n}}[/tex]

Given that the data is chosen from an individual sample;

Then; we can express the width as:

[tex]L \sigma \sqrt{\dfrac{\lambda}{(2-\lambda)}}= 3 \sigma[/tex]

[tex]L \sqrt{\dfrac{\lambda}{(2-\lambda)}}= 3[/tex]

[tex]L \sqrt{\dfrac{0.5}{(2-0.5)}}= 3[/tex]

[tex]L \sqrt{\dfrac{0.5}{(1.5)}}= 3[/tex]

[tex]L \sqrt{0.333}= 3[/tex]

[tex]L\times 0.577= 3[/tex]

[tex]L=\dfrac{ 3 }{0.577}[/tex]

L = 5.199

Which expression represents the perimeter of the rectangle shown below

Answers

Answer:

D. 2x² + 10x - 2

Step-by-step explanation:

Perimeter of a rectangle = 2(length + width)

Length = x² + 3x - 2

Width = 2x + 1

Perimeter = 2(x² + 3x - 2 + 2x + 1)

Perimeter = 2(x² + 5x - 1)

Perimeter = 2(x²) + 2(5x) - 2(1)

Perimeter = 2x² + 10x - 2

Which graph shows a proportional relationship between the number of hours of renting a boat and the total amount spent to rent the boat?

Answers

Answer:

Its B

Step-by-step explanation:

Assume a significance level of α=0.05 and use the given information to complete parts​ (a) and​ (b) below.
Original​ claim: Less than 51​% of adults would erase all of their personal information online if they could. The hypothesis test results in a​ P-value of 0.0148
a. State a conclusion about the null hypothesis.​ (Reject Upper H0 or fail to reject Upper H0
Choose the correct answer below.
A.Reject Upper H0 because the​ P-value is less than or equal to to α.
B. Reject Upper H0 because the​ P-value is greater than α.
C. Fail to reject Upper H0 because the​ P-value is greater than α.
D. Fail to reject Upper H0 because the​ P-value is less than or equal to α.
b. Without using technical​ terms, state a final conclusion that addresses the original claim. Which of the following is the correct​ conclusion?
A. The percentage of adults that would erase all of their personal information online if they could is less than or equal to 51​%.
B.There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than 51​%.
C. The percentage of adults that would erase all of their personal information online if they could is more than 51​%.
D. There is not sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than 51​%.

Answers

Answer:

A.Reject Upper H0 because the​ P-value is less than or equal to to α.

B.There is sufficient evidence to support the claim that the percentage of adults that would erase all of their personal information online if they could is more than 51​%.

Step-by-step explanation:

Given the claim :

Less than 51% will erase their personal information :

We take this as the null ;

H0 < 0.51 ;

Alternative hypothesis which is the opposite of the Null

H1 > 0.51

P value = 0.0148

α = 0.05

At α = 0.05 ; if p value is less than α ; reject the the Null

If p value is greater than Null ; then we fail to reject the Null

Pvalue < α

The P value is less than 0.05; then we reject the Null

B.) There is significance evidence to support the Alternative hypothesis claim, that the percentage of adult that would erase all their personal information online if they could is more Than 51%

State the slope and the y intercept: y = -5/2x

Answers

Answer:

slope: −5/2

y-intercept: (0,0)

Step-by-step explanation:

use the slope-intercept form y=mx+b to find the slope and y-intercept

Slope= -5/2
Y-intercept=(0,0)

Which equation applies the associative property of multiplication? ​(−1/2⋅4/7)+(−1/2⋅2/3)=−1/2⋅(4/7+2/3)​ ​(−9/4⋅3/2)⋅(6/3⋅5/7)=−9/4⋅(3/2⋅6/3)⋅5/7​ ​−6/5−(5/3−1/4)=(−6/5−5/3)−1/4​ ​8/9⋅7/4⋅(−5/8)=8/9⋅(−5/8)⋅7/4

Answers

Answer:

8/9⋅(−5/8)⋅7/4

Step-by-step explanation:

In which place is 4 located in 3,477,609

Answers

Answer:

hundred thousands place

Step-by-step explanation:

Task 6: Question 6
6 pencils cost $1.50. At this rate, how much do 15 pencils cost?

Answers

Answer:

$3.75

Step-by-step explanation:

25 cents per a pencil

Find C, the total of the payments, and the monthly payment. Choose the correct answers. 2yc Interest(n) = m(n+1)

Joe Summers buys a gas grill and accessories. The cost, including tax, amounts to $850.00. Joe finances the grill over 12 months after making a $150 down payment. The true annual Interest rate is 14%. What are Joe's monthly payments (principal plus Interest)?

To the nearest penny, c = $ Total of payments = amount financed + c = $ Total of payments = number of payments = monthly payment = $​

Answers

Answer:

"$66.5

Step-by-step explanation:

The cost, including tax, amounts to $850.00.

Down payment =$150

Amount after paying down payment = $850-$150=$700

Interest rate = 14 %

So, interest on $700 =

So, c = $98

Total payment = amount financed + c  = 700+98=$798

Now Joe finances the grill over 12 months

So, no. of payments = 12

Now Monthly payment = Total of payments ÷ number of payments

                                      =798 ÷ 12

                                      =$66.5

Hence Joe's monthly payments (principal plus interest) is $ 66.5" i quoted so give the other person brainliest!

Step-by-step explanation:

If x= time in minutes, y= distance in miles, and y=1/6x. How far can you run 5 points
in 30 minutes?*

Answers

Answer:

You can run 5 miles in 30 minutes.

Step-by-step explanation:

y = [tex]\frac{1}{6}[/tex] x

y = [tex]\frac{1}{6}[/tex] (30)

y = 5 miles

You can run 5 miles in 30 minutes.

50% of a box of cereal is less than 1/3 of a box of cereal true or false​

Answers

Answer:

false

Step-by-step explanation:

1/3 is .3333 going on forever

so 50% is grater than 33%

Answer:

False

Step-by-step explanation:

Because 1 and 1 half/3 would be 50% of a cereal box

whats (2 − 4u)(–3) i need help i found this question on ixl pls help

Answers

Answer:

12u-6

Step-by-step explanation:

Distributive Property

(2 − 4u)(–3)

-3*2 + -4u*-3

-6+12u

12u-6

Hope this helped!

FEMALE REPRODUCTIVE SYSTEM (SE-7)

(have this done correctly for brainiest)

label the image with the words below.​

Answers

Answer:

reproductive

Step-by-step explanation:

1. Choose the correct symbol to compare. 8/10
3/4
<
>
=

Answers

Answer:

I think 8/10 is greater?

Answer:

8/10 > 3/4

Step-by-step explanation:

8/10 = .80

3/4 = .75

.80 is greater :)

Evaluate the expression when x = 6
3x - 1

Answers

Answer:

17

Step-by-step explanation:

3x - 1; x = 6

3x - 1

3(6) - 1

18 - 1 = 17

-TheUnknownScientist

determine the area of a circle whose circumference is 70​

Answers

389.93 I think is the area

Which side lengths form a triangle that is similar to triangle ABC

Answers

Answer:

A.

Step-by-step explanation:

Bc if you multiply every side by 3 you get the answer choices in answer A.

PLZ GIVE BRAINLIEST AND PUSH THANKS BUTTON IM IN A BET ABOUT WHOEVER WINS GETS $50

Side lengths form a triangle that is similar to triangle ABC are 30, 21, 45 and this can be determined by using the given data.

Given :

Triangle ABC.AB = 10AC = 15BC = 7

The following steps can be used in order to determine the side lengths form a triangle that is similar to triangle ABC:

Step 1 - First determine the ratio of the length of AB and AC.

[tex]\rm \dfrac{AB }{AC} = \dfrac{10}{15}[/tex]    --- (1)

Step 2 - Now, determine the ratio of the length of AC and BC.

[tex]\rm \dfrac{AC }{BC} = \dfrac{15}{7}[/tex]  --- (2)

Step 3 - Determine the ratio of the length of BC and AB.

[tex]\rm \dfrac{AB }{BC} = \dfrac{10}{7}[/tex]   --- (3)

Step 4 - Now, check the ratio of the side lengths given in option A).

[tex]\dfrac{30}{21}=\dfrac{10}{7}[/tex]           (Similar to expression 3)

[tex]\dfrac{45}{21}=\dfrac{15}{7}[/tex]           (Similar to expression 2)

[tex]\dfrac{30}{45}=\dfrac{10}{15}[/tex]           (Similar to expression 1)

Therefore, the correct option is A).

For more information, refer to the link given below:

https://brainly.com/question/10652623

Can anyone help me please? I’ll give brainliest

Answers

Answer:

Step-by-step explanation:

2x + 1 = 1/2 x 18 ( by mid pt theorem )

2x + 1 = 9

2x = 8

x = 8 / 2

x = 4

Hope this helps

plz mark as brainliest!!!!!!

QUICK HELP ME DUE IN 3 MINUTES 123456789x123456789

Answers

Answer:

1.5241579e+16 is the answer

i d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d ki d kv

Give me the answers for a free brainly

Answers

Cockkkkkkkkkkkkkkkkkkkkkkkkkkkk


2(5x−2)− 2x -2 =34
Solve for x

Answers

X equals five my guy

i don't know this problem​

Answers

Answer:

133 is the answer

plzz mark the brainliest❤❤

Step-by-step explanation:

3x-4=5x-38

so x=17

then we say 5×17-38=47

180-47=133

so 133 is the answe for angle 4

a postal carrier can deliver to 130 houses in a 2.5 hour period. At this rate how many hours will it take to deliver to 312 houses?​

Answers

Answer:

6 hours

Step-by-step explanation:

If you take 130/2.5 you get 52 then you take 312/52 the answer comes out to exactly 6 hours.

Is Oregon a swing or a safe state?

Answers

Answer:

Oregon is a safe state

Step-by-step explanation:

this election it is also democratic

And.... next?
THANKS AGAIN.

Answers

the answer is C : 5years

Mark lost 3.5 kilograms after a week of exercise. One kilogram is equal to approximately 2.2 pounds. Which measurement is closest to the number of pounds that Mark lost?HELP PLEASEEE

Answers

He lost 7.7 pounds. :)

the largest orange in a bag has the circumference of 9 5/8 inches. The smallest orange has a circumference
of 7 13/16 inches. Write the difference of the circumferences of the smallest orange and the largest orange

Answers

Answer:

1.81 inches

Step-by-step explanation:

Given that,

The circumference of the largest orange in a bag is [tex]9\dfrac{5}{8}\ \text{inches}[/tex] and that of smallest orange is [tex]7\dfrac{13}{16}\ \text{inches}[/tex].

Difference = largest orange - smallest orange

= [tex]9\dfrac{5}{8}-7\dfrac{13}{16}\\\\=\dfrac{77}{8}-\dfrac{125}{16}\\\\=\dfrac{29}{16}\\\\=1.81\ \text{inches}[/tex]

So,  difference of the circumferences of the smallest orange and the largest orange is 1.81 inches

Simplify 12^2 . 12^3

Answers

if you're multiplying then the answer is 12^5

when multiplying you add exponents

Is this rational or irrational I really need help ASAP! Will mark brainlist.
I need help with just the middle one.

Answers

Answer:

Rational

Step-by-step explanation:

How many solutions does the absolute value equation have?

I x - 3 I + 2 = -2

Answers

9514 1404 393

Answer:

  the correct answer is marked

Step-by-step explanation:

When the graph of the left side of the equation does not intersect the graph of the right side of the equation, there are no solutions.

__

Additional comment

Even if you extend the domain to complex numbers, there are no solutions. The f(x) = |x| function always returns a positive real value, even for complex numbers.

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