Mathematics High School

The perimeter of a rectangle is 40 inches. If the length of the rectangle is 15 inches, which equation could be used to find the width, x?
OA. x + 2(15) = 40
OB. 15(x + 2) = 40
O.Cx+ 15 = 40
OD. 2(x + 15) = 40

Answers

Answer 1
A N S W E R :

Perimeter of rectangle = 40 inchesLength of rectangle = 15 inches

Let the required Breadth of rectangle be 'x' inches

Perimeter of rectangle is calculated by the given below formula :

Perimeter = 2(Length + Breadth)

Now, substitute the given values in above formula :

→ 40 = 2(15 + x)

Hence,the option (d) 2(x + 15) = 40 is the correct answer.

Related Questions

You invest $1700 in an account that earns 1.3% interest compounded daily. Write an equation to model the amount of money at any given time.

Please give an explanation but detailed as possible. I would like to learn how to solve word problems like these and improve on my math. I wan to get better so I can peruse my dream of being an engineer, and math is an important concept to it, so I would highly appreciate some help so I can learn :D

Answers

the equation goes like this

y = ab^x

y = total cost

a = the intital amount (in your case the $1700)

b = the interest (since this is an exponetial growth it should be 1.013)

x = time

soo y = 1700(1.013)^x is the equation

Help anyone????????????

Answers

Answer:

A new car would cost 400$

If 140$ is 35% of the price of a new car then all we need to do is find how much 1% of that new car is

35%:140$

divide by 35 on each side

1%:4$

If 1% is 4$ then 100% is 400$

Hope this helped

Step-by-step explanation:

Find the equivalent expression for (x+7)(x+1)

Answers

Answer:

x^2 + 8x + 7

Step-by-step explanation:

We can see this expression as two distributive property expressions:

(x+7)(x+1) = x(x+1) + 7(x+1)

We can then expand and combine like terms:

(x^2 + x) + (7x + 7) = x^2 + 8x + 7

We have our final answer. I hope this helps! :)

Find the slope (6,-2), (0,2)

Answers

-1/4 because you have to do ride over run which is y2-y1 divided by x2-x1. Then you get your answer.

Explain, with at least 2 complete sentences, how to find the slope from a table.

Answers

Answer:

Step-by-step explanation:

We know the slope is rise over run. You can also find slope by using the formula (y2-y1)/(x2-x1) where x1, x2, y1 and y2 are points from the table. These points also aren't random and must correspond with each other. Example x1 and y1.

The rabbit population in a certain area is 300​% of last​ year's population. There are 900 rabbits this year. How many were there last​ year? *
A - 300 rabbits
B - 2,700 rabbits

Answers

I believe it would be A

Answer:

-300

Step-by-step explanation:

Question 5
1 pts
Javier downloaded 250 pictures from his cell phone to his computer.
These pictures took up 500 megabytes of space on his computer.
Each picture took up thesame amount of space. How many megabytes
do 40 of these pictures take up?

Answers

40 pictures take up 80 megabytes on the computer

7(a - 4) plsss help!!!

Answers

Answer:

7a - 28

Step-by-step explanation:

multiply a and -4 by 7

7a - 28

What is the solution to this system of equations?
10
8
6
y = x + 6
y = -0.5x + 3
4 2
2
O A. (-1,2)
OB. (-2,4)
O C. (2, -1)
O D. (4,-2)

Answers

Answer:

it is B

Step-by-step explanation:

Look at where both of the lines meet from there you can find that (-2,4) is the solution

The solution to the system of equations is (x, y) = (-2, 4).

Option B is the correct answer.

What is an equation?

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

We can solve this system of equations by setting the expressions for y equal to each other and solving for x, then substituting the value of x into one of the equations to find the corresponding value of y.

y = x + 6 ...(1)

y = -0.5x + 3 ...(2)

Setting equations (1) and (2) equal to each other gives:

x + 6 = -0.5x + 3

Solving for x, we get:

x + 0.5x = 3 - 6

1.5x = -3

x = -2

Substituting x = -2 into equation (1), we get:

y = -2 + 6

y = 4

Therefore,

The solution to the system of equations is (x, y) = (-2, 4).

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ7

In order to prove the triangles pictured below as congruent BY SAS, we would need to know ___

a. AB≅AD
b. angle BAC≅angle DAC
c. angle ABC≅angle ADC
d. angle BCA≅angle DCA

Answers

Answer: D

Step-by-step explanation: i got it right

The rectangle shown

Answers

The answer is C- 20

a^2 + b^2=c^2


Can you help me with these questions on the bottom plz?

Answers

Answer:

13) 140

14)180

15)100

Step-by-step explanation:

13) a line is 180 and dgf is 80, the other one is 40, so 120 -180 is 60. add hat to 80, and you get 140

14) a line is 180

15) a line is 180 bgd is 40, dgf is 80, so egb is 60, add 60 and 40, and you get 100

Brainliest ??? HELP

Answers

Answer:

D

Step-by-step explanation:

Two after school clubs are having pizza parties. The Science Club teacher orders 1 pizza to split equally between 3 students. The Robotics Club teacher orders 2 pizzas to split equally between 4 students. At which party do the students get more pizza?​

Answers

The Robotics Club Teacher

hope this helps and Merry Christmas and Happy Holidays!!!<3

Find the slope:

(1,3) (4,9)

Answers

Answer:

m =2

Step-by-step explanation:

slope formula is m= y2-y1/x2-x1

m= 9-3/4-1

m= 6/3

m= 2

Answer:

I think its 2,7

Step-by-step explanation:

Alison swims 75 feet in 12 seconds. What is he rate to the nearest mile per hour? Please explain all the steps.

Answers

Answer:

32. 74

Step-by-step explanation:

Round money monetary answers to the nearest cent. ... using the Distributive Property and explain each step. ... Alison has $9.70 in dimes and quarters. ... It takes him 2.4 hours to get to Seattle, driving at 15 miles per hour faster than the.

This is a very important homework ( pls do answer if u know)

Answers

Answ

A., D., B.

Step-by-step explanation:

A store owner paid $15 for a book , she marked up the price of the book by 40% to determine its selling price . What is the selling price in dollars of the book ?

Answers

It is 15*40% =6
15+6=21$

What is the unit price for trail mix if a 8 ounce bag cost $2.80.

Answers

1 ounce for every 38 cents hope this helps

The following table shows a proportional relationship between mmm and nnn.
mmm nnn
333 212121
555 353535
888 565656
Write an equation to describe the relationship between mmm and nnn.

Answers

Answer:

n=7m

Step-by-step explanation:

this answer is good on khan academy

The equation to describe the relationship between m and n will be n = 7m.

What is constant of proportionality?

Firstly, there is proportional relationship.

Two values x  and  y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called constant of proportionality.

In order to find an equation between n and m by dividing n/m

m = 3, n = 21

n/m = 21/3 = 7

n = 7m

Now, check using the other two points

m = 5, n = 35

n/m = 35/5 = 7

n = 7m

m = 8, n = 56

n/m = 56/8 = 7

n = 7m

Hence, The equation to describe the relationship between m and n will be n = 7m.

Learn more about proportional relationship variable here:

https://brainly.com/question/13082482

#SPJ2

Part A How can you find the magnitude of a vector , where the horizontal change is x and the vertical change is y?

Answers

Step-by-step explanation:

The magnitude of the 2D vector is sqrt[x² + y²].

wrong answer sorry bout that

Select Rational or irrational to classify each number

Answers

4/5 is rational. sqr(4)/5 is rational. pi is irrational and sqr(25)/4 is irrational

x divided by7 = 21
plss shelp

Answers

Answer:

x divided by7 = 21

therefore x= 3

Step-by-step explanation:

so 21/7 = 3

therefore x=3

Answer:

147

Step-by-step explanation:

you have to multiply 7 by 21

hope this helps dont 4get to like and star

-mercury

If you apply these changes to the linear parent function, f(x)=x, what is the equation of the new function? Vertically compress by a factor of 4. Reflect over the x-axis . A. G(x) = 4 - x B. G(x) = - 1/4 * x C. G(x) = 1/4 * x D. G(x) = - 4x

Answers

Given:

The linear parent function, f(x)=x is vertically compressed by a factor of 4 and reflected over the x-axis.

To find:

The new function.

Solution:

The vertical stretch and compression is defined as

[tex]g(x)=kf(x)[/tex]

If k>1, then f(x) vertically stretched by factor k and if 0<k<1, then f(x) vertically compresses by factor [tex]\dfrac{1}{k}[/tex].

In the given problem, linear parent function, f(x)=x is vertically compressed by a factor of 4. So, [tex]k=\dfrac{1}{4}.[/tex]

[tex]g(x)=\dfrac{1}{4}f(x)[/tex]

Then, it is reflected over the x-axis.

[tex]G(x)=-g(x)[/tex]

[tex]G(x)=-\dfrac{1}{4}f(x)[/tex]       [tex][\because g(x)=\dfrac{1}{4}f(x)][/tex]

[tex]G(x)=-\dfrac{1}{4}x[/tex]       [tex][\because f(x)=x][/tex]

So, the new function is [tex]G(x)=-\dfrac{1}{4}x[/tex].

Therefore, the correct option is B.

Answer:g(x)=-1/4x

Step-by-step explanation:

Anna is plotting points for a rectangle in the coordinate plane. She plots (4, -3), (4, 0), and (-2, 0). Which could be the coordinate pair that Anna plots in the third quadrant?
a) (2,3)
b) (-2,3)
c) (2,-3)
d) (-2,-3)

Answers

the answer is d, because if you plot all the other coordinates, you need to plot a point in (-2,3) to get a straight rectangle.

HELP ME. It takes 12 hours to paint a 10-ft-by-18-ft mural. At this rate, how long will it take
the same number of people to paint the same mural on a 15-ft-by-27-ft wall?

Answers

18hrs because its a scale factor of 1.5

What does ⊥ mean in math ?
plz don't copy from g00gle

Answers

Answer:

Perpendicular

Step-by-step explanation:

It is a symbol used for showing any two lines perpendicular to each other.

Answer:

The symbol ⊥ is representative of the perpendicularity of lines.

Step-by-step explanation:

For lines to be perpendicular, they must intersect and form a right angle (90 degrees).

For example, in the image shown:

[tex]AB[/tex] ⊥ [tex]XY[/tex]

This is because the two lines intersect and form a right angle.

Esmeralda received a bag of jellybeans that contained a mixture of regular flavored jellybeans and "surprise" jellybeans. The bag advertised that 15% of the jellybeans were "surprise" flavors. If she counted 40 jellybeans in the bag, how many should she expect to be the "surprise" jellybeans? Use the proportion method and scale factor to justify your solution.

Answers

Answer:

6  "surprise" flavors jellybeans

Step-by-step explanation:

From the information given:

The bag contained a mixture of regular flavored jellybeans and "surprise" jellybeans.

There are 40 jellybeans in the bag.

If 15% of the jellybean were "surprise" flavors.

Then, the number of expected "surprise" jellybeans will be:

= 15% of 40 jellybeans

= (15/100) × 40

= 6  "surprise" flavors jellybeans

If  6 surprise jellybean is contained in the bag;

Thus, the number of regular flavored jellybean will be

= 40 - 6

= 34 regular flavored jellybean

Luis charges a travel fee of $10 plus $25 per month to mow his neighbors' lawns. If most of his customers only get their lawns mowed for 5 to 8 months out of the year, what is the RANGE of this situation?

Answers

Answer:

135 to 210

Step-by-step explanation:

Given

[tex]Base\ Charge = 10[/tex]

[tex]Additional\ Charge = 25[/tex] monthly

Months = 5 to 8

Required

Determine the range of the function

First, we need to determine the function equation.

Let total charges be y and months be x

[tex]y = Base\ Charge + Additional\ Charge * x[/tex]

[tex]y = 10 + 25 * x[/tex]

[tex]y = 10 + 25x[/tex]

When x = 5:

[tex]y = 10 + 25 * 5[/tex]

[tex]y = 10 + 125[/tex]

[tex]y = 135[/tex]

When x = 8

[tex]y = 10 + 25 * 8[/tex]

[tex]y = 10 + 200[/tex]

[tex]y = 210[/tex]

Hence, the range is 135 to 210

Find the value of each variable that makes the equation true.
1. 89 = 1
2. 94.9-6 = 96
3. 5-3.2-3 = 100

Answers

What’s the equation?
Wait what’s the equation?
Other Questions
Which is considered a watch dog of the performance of the government? your stopped at a red light. You've checked the intersection to see that it is clear of vehicles and pedestrians, unless a tells you not, you may then? Which sentence best paraphrases the passage? Swift has been wearied out for many years and wants to incur no danger in dsiobliging England. Swift offers a harsh critique of England and points out the many ways that the English dehumanize the Irish. Swift says that after much time and effort, he was finally able to come up with a viable solution to the problem of poverty. Please help me slove this problem 3x - 3 = 12 In parallelogram STUV, find the measure of TS. can someone give me limitations for a bunny-human hybrid with these Skills/Abilities Powers: Can somewhat fully transform into a small black bunny her looks is small and fragile (shes not), Bexley can talk to animals when needed, she can as well hear from at least a two-mile radius, she can jump very very high and fast 20 Points! WILL Give brainiest!Qu frases de la derecha se relacionan con las palabras o frases de la izquierda? What did Angelina Grimk see as the role of the church in the debate over slavery? In the documentary, A Social Dilemma, what do the films experts say will happen in the future to society? (Half page response) In a criminal court case, who recommends a sentence to the judge? the jury the plaintiff the defendant the government please help and dont worry this isnt a test little treelittle silent Christmas treeyou are so littleyou are more like a flowerwho found you in the green forestand were you very sorry to come away?see i will comfort youbecause you smell so sweetlyi will kiss your cool barkand hug you safe and tightjust as your mother would,only don't be afraidlook the spanglesthat sleep all the year in a dark boxdreaming of being taken out and allowed to shine,the balls the chains red and gold the fluffy threads,put up your little armsand i'll give them all to you to holdevery finger shall have its ringand there won't be a single place dark or unhappy BRAINLIEST IF RIGHT 60 POINTSWhat was one of the first successful economic trends to exist in Canada?a.fur tradeb.railroad buildingc.oil drillingd.farming Plsss Help me but QUICK ASAP I need to create a fitness poster that encourages exercise and healthy living, what is a good and unique title/name i can use for it ? 1. True or False? Europe and Asia are separate continents. 2. What are the British Isles? What Ocean are they in? 3. What separates Europe from the continent of Africa? 4. What is the Italian peninsula is shaped like? 5. What countries are a part of the Scandinavian Peninsula? 6. What are Europes most important navigable rivers? What is the capital of Italy? What has made travel easier in the Alps? how do I Translate the following verbal statement into an algebraic equation and then solve: Krystal bought a nightstand on sale for $170, which was one-fourth of the original price. What was the original price of the nightstand a certain arithmetic sequence has the following for the nth term an= 12 + (n-1)(5)State whether its a, b,c, or d please. What is the velocity of a wave with a frequency of 930 Hz and a wavelength of 0.50 m? If more oxygen were made available to cells that had a limited amount of oxygen, what could be the result? Select all that apply.A.Anaerobic respiration could occur more quickly.B.The cells could begin to perform aerobic rather than anaerobic respiration.C.The cells could begin to perform anaerobic rather than aerobic respiration.D.The cells mitochondria could become involved in the cellular respiration process.