Challenge question. Develop a formula for calculating the perimeter of a rectangle whose length is exactly twice its width?​

Answers

Answer 1

Answer:

A

=

200

f

t

2

Explanation:

Let the width be  

x

, then the length is  

2

x

Perimeter

=

x

+

2

x

+

x

+

2

x

=

60

6

x

=

60

x

=

10

   

this is the width

2

x

=

20

   

this is the length

Area

=

l

×

b

A

=

20

×

10

A

=

200

f

t

2

The area is  

200

f

t

.

2

Explanation:

Always draw a picture for this type of question to help you visualize what's going on. When you do that, label the shorter side of your rectangle  

w

. Label the longer side  

l

=

2

w

, or just  

2

w

, since the length is twice the width.

Add up the sides and set them equal to  

60

:

w

+

w

+

2

w

+

2

w

=

60

6

w

=

60

6

w

6

=

60

6

w

=

10

So the width is 10 ft, and the length that is two times as long is 20 ft.

The formula for area is length times width, so plug in our new values:  

l

w

=

20

10

=

200

f

t

.

2

Hope that helps!!


Related Questions

For two matrices to be equal, they must have?
the same size and both must be diagonal matrices.
both must be square matrices.
have equal corresponding elements.
have opposite corresponding elements.

Answers

Answer:

answer is C on ED

Step-by-step explanation:

For two matrices to be equal, their corresponding elements should be equal.

What is matrix?

Matrix in mathematics is the arrangement of numbers in the form of rows and columns.

A matrix is defined by a order in the form {m} x {n}, where {m} denotes the number of rows and {n} denotes the number of columns.

We can write the example of a matrix as follows. Given below is a 3 x 3 matrix. It is a square matrix.

[tex]$\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right][/tex]

Given is to find the condition in which two matrices are equal.

For two matrices to be equal, their corresponding elements should be equal. Mathematically, for two matrices A and B, can be considered as equal if -

a{i, j} = b{i, j}

Therefore, for two matrices to be equal, their corresponding elements should be equal.

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Which of the following is the best description of the graph below?

Answers

Answer:

im not sure on this but i think A. The linear parent function

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The V like shape comes from the function f(x)= lxl, which is the absolute value parent function

A proportion is two fractions that have an equal sign between them. True or False?

Answers

yes that is true it can also be a colon instead of a fraction

Answer:

True

Step-by-step explanation:

That is one way to write a proportion, yes, so I say this is True.

Identify the variables in the expression 4mn + 6m -3

Answers

Answer:

The variables are m and n

Step-by-step explanation:

I learned this

Write
9/18
in lowest terms

Answers

Answer:

1/2

Step-by-step explanation:

what is k value of 6k-2z=18

Answers

Answer:

6(4)-2(3)=18

Step-by-step explanation:

The value of k is 4.

I know this because I' just smart like that

7th Grade ,

Thanks in advance,

       Brianna Edwards

George buys a computer. He pays a deposit of £200 and six monthly instalments of £55. How much does George pay for his computer in total?

Answers

Answer:

530

Step-by-step explanation:

200+6(55)

6x55=330

200+330=530

Michelle is selling notebooks to her classmates so they can be organized in Math class.
• Each box contains 20 notebooks
• Each box of notebooks cost $30
Michelle wants to make a profit of $20. How much does she need to sell her notebooks to make a profit of $20?

How much does she need to sell her notebooks to make a profit of $20?

Answers

Answer:

680

Step-by-step explanation:

DONT MIND MY ANSWER !! ILL MARL BRAINLIST !!!

Assume that each circle shown below represents one unit. Express the shaded
amount as a single fraction and as a mixed number

Answers

Answer:

One fraction = [tex]\frac{23}{12}[/tex]

Mixed Number = [tex]1\frac{11}{12}[/tex]

Step-by-step explanation:

Since each circle represents one unit,

Sum of all segments of a circle = Circle having 12 segments

If one segment of the circle is removed from one circle,

Remaining parts of the given circles = 12 + 11

Now one  fraction representing the shaded sectors = [tex]\frac{12}{12}+\frac{11}{12}[/tex]

                                                                                       = [tex]\frac{23}{12}[/tex]

Mixed number = [tex]\frac{12}{12}+\frac{11}{12}[/tex]

                        = 1 + [tex]\frac{11}{12}[/tex]

                        = [tex]1\frac{11}{12}[/tex]

Find the value of y if B is between A and C, AB is 2y, BC is 6y, and AC is 48.

Answers

Answer:

7. C. 6

8. H. √34

9. A. (1, 3.5)

10. J. 10

Step-by-step explanation:

7. AB = 2y, BC = 6y, AC = 48

AB + BC = AC (segment addition theorem)

Substitute the above values into the equation

2y + 6y = 48

Solve for y

8y = 48

Divide both sides by 8

8y/8 = 48/8

y = 6

8. Distance between P(2, 8) and Q(5, 3):

[tex] PQ = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex]

Let,

[tex] P(2, 8) = (x_1, y_1) [/tex]

[tex] Q(5, 3) = (x_2, y_2) [/tex]

[tex] PQ = \sqrt{(5 - 2)^2 + (3 - 8)^2} [/tex]

[tex] PQ = \sqrt{(3)^2 + (-5)^2} [/tex]

[tex] PQ = \sqrt{9 + 25} [/tex]

[tex] PQ = \sqrt{34} [/tex]

9. Midpoint (M) of segment LB, for L(8, 5) and B(-6, 2) is given as:

[tex] M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}) [/tex]

Let [tex] L(8, 5) = (x_1, y_1) [/tex]

[tex] B(-6, 2) = (x_2, y_2) [/tex]

Thus:

[tex] M(\frac{8 + (-6)}{2}, \frac{5 + 2}{2}) [/tex]

[tex] M(\frac{2}{2}, \frac{7}{2}) [/tex]

[tex] M(1, 3.5) [/tex]

10. M = -10, N = -20

Distance between M and N, MN = |-20 - (-10)|

= |-20 + 10| = |-10|

MN = 10

What is the solution for 2x + y =12 x = 9 - 2y

Answers

Answer:

x=5 and y=2

Step-by-step explanation:

I hope this helps

Beth’s motor scooter gets 110 km/gal. How far can she go on 2.5 gal. of fuel?

Answers

Answer:

275

Step-by-step explanation:

110 x 2.5 = 275

If 110 km is one gallon, you would multiply 110 by 2.5, and that's what i did above.

2 gallons of gas will get her 220. 110 divided by 2 is 55 which means that 220 plus 55 will mean 275 km

Which of the following is not a natural number? Select one:0 3 8 11

Answers

Answer: 0

Step-by-step explanation: Natural numbers are your

counting numbers and they're always positive.

Since 0 is not a positive number,

it's not include within the set of natural numbers.

Answer: 0

Step-by-step explanation:

A two year prepaid membership at Gym A costs $250

Answers

Answer:

what's the question?

explanation

15) You have an allowance of $15 per week. You are in a bowling league that costs $6.50 each week,
and you save at least $5.00 each week. How much will you have left to spend each week?

Answers

Answer:

3.50

Step-by-step explanation:

15-5-6.50 equals 3.50

.7 repeating as a fraction

Answers

Answer:

7/9

Step-by-step explanation:

x = .7

10x = 7.7

10x - x = 7.7 repeating

9x = 7

x = 7/9

Bam

A star athlete at a local college scored a total of 649 points during the 31 basketball games she played in the 2004 regular season. What was the average number of points she scored per game ?

Answers

Answer:

21

Step-by-step explanation:

if u divide 649 by 31 u get 20. 93 Wich u round up to 21

The average number of points scored by athlete per game is 21.

It is given that a star athlete scored 649 points during the 31 basketball games.

We have to find , the average number of points she scored per game.

What will be the value if 24 is divided into 8 parts equally ?

The value will be 3.

Total points scored in 31 basketball games = 649 points

Points scored in 1 game =

649 ÷ 31

= 20.93

21 points per game

Thus , the average number of points scored by athlete per game is 21.

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MATH QUESTION PLEASE HELP!

Answers

Answer: B

Step-by-step explanation: its B

i did this before

How many lines of symmetry are in this snowflake design?

Answers

Answer:

6 is the answer because it is

Number of lines of symmetry in snowflake design would be,

⇒ 6

We have to given that,

A snowflake design is shown in image.

Since, We know that,

Exactly dividing a form in half, a line of symmetry exists. This indicates that the form would fold perfectly in half if you did so along the line.

Hence, By definition of line of symmetry,

Number of lines of symmetry in snowflake design would be,

⇒ 6

Thus, Number of lines of symmetry in snowflake design would be,

⇒ 6

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Given g(x) = {x and h(x) = x2.
What is the difference between g(h(6)) and h(g(6))?

Answers

Answer:

g(h(6)) = 36

h(g(6)) = 36

Explanation:

There is no difference in this because we're just basically using the commutative property. For g(h(6)), you just plug in 6 for x² which will give you 36. And since g(x) = x, the value of x is 36. In the same way for h(g(6)), g(6) = 6 and h(6) = (6)² therefore getting you 36. For both equations though, you will get the same answer.

Answer:

g(h(6)) = 36

h(g(6)) = 36

Step-by-step explanation:

There is no difference in this because we're just basically using the commutative property. For g(h(6)), you just plug in 6 for x² which will give you 36. And since g(x) = x, the value of x is 36. In the same way for h(g(6)), g(6) = 6 and h(6) = (6)² therefore getting you 36. For both equations though, you will get the same answer.

what is the value of p?

Answers

Answer:

47 sorry if wrong

Step-by-step explanation:

Answer:

D. 43°

Step-by-step explanation:

Angle CAB = 180° - 133° = 47° (Angles on a Straight Line add up to 180°)

Angle ACB = 180° - 90° = 90° (Angles on a Straight Line add up to 180°)

Angle p or ABC = 180° - 90° - 47° = 43° (Angles in a Triangle add up to 180°)

Evaluate the expression.
|−3.2|

Answers

your answer is 3.2 evaluated

Given: g(x)= x-4 and hix) = 2x-8.
What are the restrictions on the domain of go h?
(please help me i’m so done)

Answers

Answer:6

Step-by-step explanation:

What is the value of (–4)–3?

Answers

Here you go. Good luck!

The box plots show the student grades on a chapter test compared to the grades on a retest in the same class. Box plots titled Chapter Test versus Retest with horizontal axis labeled Class Marks ranges from 0 to 100. Chapter Test box plot with minimum between 40 and 50 and maximum between 90 and 100 has interquartile ranges approximately between 50 and 80 and median approximately at 70. Retest box plot with minimum between 50 and 60 and maximum approximately at 100 has interquartile ranges approximately between 60 and 80 and median approximately between 60 and 70. Which of the following best describes the information about the medians? The chapter test and retest medians are almost the same. The chapter test and retest Q3 are the same, but the chapter test has the higher median. The chapter test median is much higher than the retest median. The low outlier on the chapter test pulls the median lower.

Answers

Answer:

i think its - The chapter test and retest Q3 are the same, but the chapter test has the higher median.

Step-by-step explanation:

if i'm wrong please let me know.

Answer:

C )The chapter test and retest Q1 are the same, but the retest has the higher median.

the product of 9 and m is 49

Answers

Answer:

9m=49 is the answer of the product of 9 and m is 49

A missile flies 20 miles in 10 minutes. Calculate the missile’s rate of change. a) 2 mi/min b) 10 mi/min c) 10 min/mi d) 1/2 mi/min

Answers

Answer: The answer would be 2 miles a minute.

Step-by-step explanation: Simply divide the miles by the minutes.

Missile's rate of change is 2 mi/ min

The rate of change in this instance is the speed that the missile is going at because rate of change is used to calculate how fast something is changing in respect to time.

Speed = Distance / Time

Distance = 20 miles

Time = 10 minutes

Rate of change:

=  20 / 10

= 2 miles per minute

The rate of change is therefore, 2 mi/ min

Find out more at  https://brainly.com/question/20605553.

helppHELphelpHELPhelp

Answers

Answer:

8

Step-by-step explanation:

Multiply both the numerator and denominator by 4

Answer:.

Step-by-step explanation:

Round 649 to the nearest hundred

Answers

Answer: 600

Step-by-step explanation:

6x+6=6(x-1) is what I need help with

Answers

Steps to solve:

6x + 6 = 6(x - 1)

~Distribute left side

6x + 6 = 6x - 6

~Subtract 6 to both sides

6x = 6x - 12

~Subtract 6x to both sides

0 = -12

No solutions.

Best of Luck!

Hey there!☺

[tex]Answer:\boxed{\text{There are no solutions.}}[/tex]

[tex]Explanation:[/tex]

[tex]6x+6=6(x-1)[/tex]

6x + 6 = (6)(x) + (6)(-1) Distribute

6x + 6 - 6x = 6x - 6 - 6x Subtract 6x from both sides

6 = -6

6 - 6 = -6 - 6 Subtract 6 from both sides

0 = -12

No solutions.

Hope this helps!

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Can somebody please help me with this ?? :) Recently, the owner of Martha's Wares encountered severe legal problems and is trying to sell her business. The company built a building at a cost of $1,240,000 that is currently appraised at $1,440,000. The equipment originally cost $720,000 and is currently valued at $467,000. The inventory is valued on the balance sheet at $410,000 but has a market value of only one-half of that amount. The owner expects to collect 98 percent of the $225,200 in accounts receivable. The firm has $10,500 in cash and owes a total of $1,440,000. The legal problems are personal and unrelated to the actual business. What is the market value of this firm? Help me please I dont know this stuff lol The image best illustrates which of the following characteristics of Confucianism during the latter Song dynasty (9601279 CE)? A) The activities of the diners show the Confucian emphasis on contemplation. 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