a rectangle is 3x feet long and 4feet wide.the value of the perimeter (in feet) is equal to the value of the area in square feet. find x

Answers

Answer 1

Answer:

x = [tex]\frac{4}{3}[/tex]  

Step-by-step explanation:

Rectangle:

Length = 3x feet

Width = 4 feet

Perimeter = 2*(length +width)

                = 2* (3x + 4)

                = 2*3x + 2*4

                 = 6x + 8

Area = length * width

        = 3x * 4

        = 12x

Area of rectangle =  perimeter of rectangle

                       12x = 6x + 8              {Subtract 6x form both sides}

               12x - 6x  = 8

                       6x = 8                    {Divide both sides by 6}

                         x = 8/6

                         x = [tex]\frac{4}{3}[/tex] feet

Answer 2

Answer:

3 feet x 4 feet= 12 feet

Step-by-step explanation:


Related Questions

Helps me solve this problem please 6

Answers

Answer:

I believe its C

Hope that helps

Step-by-step explanation:

There are no other x's from your original 4 that are 3

Someone invested some money at 8% and $300 more than
twice this amount at 12%. Her total annual income from
the two investments is $548. How much is invested at
each rate?
32

Answers

Answer:

$1600 at 8% and 3500 at 12%

Step-by-step explanation:

The rule of the interest is I = PRT, where

P is the amount of investment R is the rate in decimalT is the time

Assume that the amount of money is $x

P = x

∵ The rate is 8%

R = 8/100 = 0.08

∵ She has an annual income

T = 1

→ Substitute them in the rule to find the interest amount

∴ I = x × 0.08 × 1

I = 0.08x

∵ She invested $300 more than twice the previous amount

P = 2x + 300

∵ The rate is 12%

R = 12/100 = 0.12

T = 1

→ Substitute them in the rule to find the other interest amount

∴ I = (2x + 300) × 0.12 × 1

I = 0.24x + 36

∵ Her total annual income from both investments is $548

→ Add the two amount of interest and equate their sum by 548

0.08x + 0.24x + 36 = 548

→ Add the like terms in the left side

∴ 0.32x + 36 = 548

→ Subtract 36 from both sides

∴ 0.32x + 36 - 36 = 548 - 36

∴ 0.32x = 512

→ Divide both sides by 0.32

x = 1600

She invested $1600 at 8%

→ Substitute x by 1600 in the expression of the other amount to find it

∵ 2x + 300 = 2(1600) + 300 = 3500

She invested $3500 at 12%

the point (x,y) lies on the line y=x+2. the distance from p(1,0) to (x,y) is represented by d. write d as an expression in terms of x.​

Answers

Answer:

Step-by-step explanation:

girl im confused too:/

The perimeters of the square and the regular pentagon are equal. A square with side lengths of 3x + 3. A pentagon with side lengths of x + 8. What is the perimeter of each polygon?

Answers

Answer:

The answer is Not 40 idk what it is

Step-by-step explanation:

y=-2×+4
x-5y=2
do you know how to do this promble if you don't it's fine

Answers

Answer:

x=2

y=0

Step-by-step explanation:

Substitute -2x+4 for the y value in the second equation to find the value of x. x=2

Then plug 2 in for x in the first equation to find y. y=0

answer x=y-4/2  

Step-by-step explanation:

-4=2x y-4/2=x

x=2+5y

-5a + 15/2a - 25 = 53.2 + 21.8​

Answers

Answer:

a= 40

Step-by-step explanation:

-5a + 7.5a - 25 = 53.2 + 21.8​

add like terms on both sides: 2.5a - 25 = 75

add 25 on both sides: 2.5a = 100

divide both sides by 2.5: a = 40

Answer:

a = 40

Step-by-step explanation:

-5a + 15/2a - 25 = 53.2 + 21.8​: Add 25 to Isolate variable

-5a + 15/2a = 53.2 + 21.8 + 25: Combine Like Terms and create simmilar terms

-10/2a + 15/2a = 100: CLM again

5/2a = 100: multiply both sides by inverse of 5/2 to isolate variable

a = 40

What are the solutions of 6t-1> 4t+13

Answers

answer:t>7

6t - 1> 4t + 13 Move the terms 6t - 4t> 13 + 1 Group the like terms Calculate 2t> 14 Divide both sides Solution t> 7 Alternate between E (7, + 0) Explain the steps> II

Help needed ASAP will give brainliest and 5 STARS RATE

Answers

Answer:

C.

Step-by-step explanation:

Cho had $2.85 in nickels and $3.40 in dimes. Then she gave an equal number of her nickels and dimes to her brother. Now Cho has the same amount of money in nickels as in dimes.

The equation 285−5x=340−10x represents the situation.

Which does the variable x represent?

Will Give Brainliest

Answers

285-5x=340-10x

285-5x-(340-10x)=0

-5x-(-10x+340)+285=0

-5x+10x-340+285=0

5x-55=0

5x=55

x=55/5

x=11

Answer:

x = 11

Step-by-step explanation:

The equation represents as:

285 − 5x = 340 − 10x

combine similar terms:

285 - 340 = 5x - 10x

simplify:

-55 = -5x

divide -5 on both sides:

x = 11

Thanks in advance!
filler filler filler filler filler

Answers

Answer:

C

Step-by-step explanation:

The base number is 2, and it's being multiplied 7 times, so 7 is the exponent

Hope this helps!

Deshawn's Bikes rents bikes for $11 plus $5 per hour. Maria paid $51 to rent a bike. For how many hours did she rent the bike?

Answers

8 hours i hope this helps :)

If h(x) = 5 + x and (x) = 5. which expression is equivalent to (k-1)(o)? (5+) 1 (5+) 5+ 5+ (5 + x)​

Answers

(5+x)/x

K*H = 1/x(5+x) or (5+x)1/x which = (5+x)/x because (5+x)1/x = [(5+x)/1] * [1/x] and anything multiplied by one is equal to itself.

If h(x) = 5 + x and k(x) = 5 then the expression which is equivalent to (koh)(x) is 25+5x

What is a function?

A relation is a function if it has only One y-value for each x-value.

The given functions are h(x) = 5 + x and k(x) = 5x

We have to find the expression which is equivalent to (koh)(x)

(koh)(x) = k(h(x))

=k(5+x)

Now we have to plug in 5+x in the function k(x)

k(5+x)=5(5+x)

=25+5x

Hence, if h(x) = 5 + x and k(x) = 5 then the expression which is equivalent to (koh)(x) is 25+5x

To learn more on Functions click:

https://brainly.com/question/30721594

#SPJ7

What is the value of the expression -17 x 1.3? Be sure to use the correct place value.

Answers

DA DA DA DA DA DA DA DA DA DA

Join the cult ;)

Answer:

-22.1

Step-by-step explanation:

-17 x 1.3 = -22.1  

Hope I helped!

what is the value of i^13

Answers

Answer: i

i¹³ = 1

i · i ·i ·i ·i · i · i · i · i · i · i  ·i · i = i

Answer:

i

Step-by-step explanation:

[tex]i^{13}[/tex] = i × i × i × i × i × i × i × i × i × i × i × i × i = i

I hope this helps!

does anybody know the answer lol excuse the rohan cursor :p

Answers

Answer:

you will get no solutions

Answer:

No Solution

Step-by-step explanation:

The sum of 3 consecutive odd integers is 36. Whal
consecutive odd integers

Answers

[tex]\huge\pink{Answer}[/tex]

Any odd number can be represented with 2n+1 where n is a whole number. Also, since the next consecutive number will be even (2n+1+1), then the next consecutive odd number must be 2n+1+2, or 2n+3. Since consecutive odd numbers are separated by 2, then the previous odd number should be 2n-1. So:

2n-1+2n+1+2n+3=366n+3=366n+3-3=36-36n/3=33/32n=11

Now in order to find three odd consecutive numbers that will sum to 36, you must be able to divide 11 evenly by 2, and have a whole number as a result. This is impossible, so there aren't any 3 odd numbers that will sum to 36.

HOPE IT HELPS ☺️

can someone help..convert 15/125 to a decimal in long division?

Answers

Answer:

the answer is 0.12

Step-by-step explanation:

You would do 15/125 which is 3/25

then you would do 25 times 4 and the 3 times for to get 12/100

then you would convert that into a decimal which is 0.12

Here are the steps to your problem

3x2(2+4)X22 PLEASE HELP

Answers

Answer: 18x24 or 792

Step-by-step explanation:

I need help ASAP
Which statement best describes points P and Q?

Answers

Answer:

their y coordinates are the same

Step-by-step explanation:

Answer:

Their y-coordinates are the same.

Step-by-step explanation:

Point P is at (-6, 4) and Point Q is at (1, 4).

Notice how their y-values, which is 4, are the same.

Which of these correctly defines a ray?
a part of a line with exactly two end points
a straight path that extends endlessly in both directions
a circular path such that every point on the path is equidistant from its center
a part of a line that begins at a particular point and extends endlessly in one direction

Answers

Answer:

the last option

Step-by-step explanation:

it is a ray

A ray is part of a line that begins at a particular point and extends endlessly in one direction

A ray can be defined as a straight line passing through a point. A ray is denoted by;

A pointed head with an arrowa line extend endlessly in a directiona line that begins from a particular point

Hence we can conclude that a ray is part of a line that begins at a particular point and extends endlessly in one direction

Learn more here: https://brainly.com/question/11916463

What is 153×694 pleas someone help me

Answers

The answer is 106,182

Answer:

106182

Step-by-step explanation:

Divide. Write your answer as a fraction in simplest form.

−10 2/7 ÷ (−4 4/11)=

Answers

Answer:

Answer is 2 5/14. Hope that helped

Answer:

33/14 or 2 5/14

Step-by-step explanation:

PETS Last month, Hao's dog ate 40 cans
of dog food in 31 days. How many cans
should Hao buy to feed his dog for the
next 6 days?

Answers

Answer:

8 cans

Step-by-step explanation:

Answer:

8 cans

Hope I helped

FIND VALUE OF X AND OF ANGLE ABC AND ACD
PLS HELP
GEOMETRY

Answers

Answer:

see explanation

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ ACD is an exterior angle of the triangle, thus

43 + 5x - 48 = 3x + 57 , that is

5x - 5 = 3x + 57 ( subtract 3x from both sides )

2x - 5 = 57 ( add 5 to both sides )

2x = 62 ( divide both sides by 2 )

x = 31

Thus

∠ ABC = 5x - 48 = 5(31) - 48 = 155 - 48 = 107°

∠ ACD = 3x + 57 = 3(31) + 57 = 93 + 57 = 150°

sara wong spent $15 on three fancy pens.how much did each pen cost

Answers

Answer:

$5

Step-by-step explanation:

3 pens=$15

3x=15

3x÷3=x 15÷3=5

1 pen is $5

Explain! Prizes! Thank you !

Answers

Answer:

$16

Step-by-step explanation:

20/5 = 4

4 x 4 = 16

Have a good day!

Answer:  Choice A) $16

==================================================

Work Shown:

5 notebooks = 20 dollars

5/5 notebooks = 20/5 dollars ..... divide both sides by 5

1 notebook = 4 dollars ..... unit rate

4*(1 notebook) = 4*(4 dollars) .... multiply both sides by 4

4 notebooks = 16 dollars

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

Another approach:

(5 notebooks)/(20 dollars) = (4 notebooks)/(x dollars)

5/20 = 4/x

5*x = 20*4 ... cross multiply

5x = 80

5x/5 = 80/5 .... dividing both sides by 5

x = 16

So 4 notebooks cost $16

plz help me this one is a lil tough

Answers

Answer:

100 degrees

Step-by-step explanation:

It's going through 140 and 40, 180 - 40 = 140

180 cause a flat line is 180 degrees

Answer:

140*

Step-by-step explanation:

the line is pointing through 40* and 100* which makes it that.

hope this helps! have a good day and stay safe!

id like brainliest but if not its ok!

(i got it wrong the first time but once i looked at it more i found it out)


Solve for the missing angle.
65
45
0 70
O 65
0 45
0 25

Answers

the first one - 70.
Why?
because a triangle has to equal to 180.
65+45=110
180-110=70
therefore the answer is, 70.

Dory can run 3.25 miles every hour. How long will it take her to run a race that is 16 1/4 miles long?


pls help​

Answers

it would rake her 5 hours

Which it the equation of the line that passes through the point (2,-1) and has a slope of -3?

Answers

Answer:

y=-3x-1

Step-by-step explanation:

slope formula is y=mx+b

so, ya just plug in. slope is -3 and b (y-value) is -1

Other Questions
What happens immediatesly after you dissolve acid in water? Positively charged hydrogen atoms are released. Positively charged hydrogen atoms are released. Negatively charged hydrogen atoms are released. Negatively charged hydrogen atoms are released. Hydronium ions are released. Hydronium ions are released. Neutrally charged hydrogen atoms are released. Neutrally charged hydrogen atoms are released. According to this pie chart, which ethnicity made up themajority of the population in South Africa from 1904 to1960?What is the answer?a,b,c or d Six reasons why the colonies want Independence . The ages of three siblings combined is 27. The oldest is twice the age of the youngest. The middle child is 3 years older than the youngest. Compare and contrast prokaryotic cells and eukaryotic cells. Sort each statement into the correct box. Some statements may apply to more than one type of cell. Some statements may not be used.Can be specialized for specific tasks in multicellular organisms Contain DNA Contain nuclei Are surrounded by a cell membrane Were the first photosynthetic organisms on Earth Can be specialized for specific tasks in multicellular organisms Write the word YES if the sequence iz arithmetic and NO if not. Give the common difference (d) of the item that you think is an arithmetic sequence.EXAMPLE:Given: 7, 20, 33, 46,...Answer: YES, d = 131. 3, 6, 9, 12, 15,...2. 1, 2, 3, 5, 8,...3. -1, 1, -1, 1, -1,...4. 16, 12, 8, 4, 0,...5. -2, -7, -12, -17, -22,...6. 2, 4, 8, 16, 32,...[tex] 7.\frac{1}{2}, \: \frac{1}{3}, \: \frac{1}{4}, \: \frac{1}{5}, \: \frac{1}{6},...[/tex]8. -20, -13, -7, 1, 8,...9. 99, 88, 77, 66, 55,...10. 1, \frac{5}{2}, 4, \frac{11}{2}, 7,... Elements in the same _____ on the periodic table have the same number of valence electrons. $14.59 per pound for lobster or 3 pounds of lobster for $40.99 Meme 80 points! :D good boi Due at midnight help Find u + v if u = (-4,7, 2) and v = (4,1, -3) Drag the correct steps into order to solve the equation -4x+12=-4 for x Which line from "I'm Nobody! Who Are You?" by Emily Dickinson contains a simile?"Then theres a pair of usdont tell!""Theyd banish us, you know.""How public, like a frog""To tell your name the livelong day" Please help due tmmrw I'll give you brainliest The dogs run/ runs down the street every day At one time, people believed that living things could develop from nonliving matter, an idea known as spontaneous generation. Which of these ideas has replaced the idea of spontaneous generation? Group of answer choicesA)All living things are composed of cells.B)All matter is made up of atoms.C) All cells come from pre-existing cells.D)Cells are the basic units of structure and function in living things. What would be 1/2 times 800? Evaluate the expression 3(7 + 4)2 14 7. A 50 HELP PLZ :( B 361 C 363 D 586 How many years passed between 100 C.E and 500 C.E ? PLZ HELPIn The True Confessions of Charlotte Doyle, the author uses such images as "a sleeper best by evil dreams" and "the imp of death" to create a mood of: ________HopeJoysadnessdanger