The perimeter of a rectangle is 20 feet. The width is 4 feet less than the length. Find the dimensions of the rectangle. Then find its area.

Answers

Answer 1

Answer:

length = 7 ft

width = 3 ft

area = 21 sq ft

Step-by-step explanation:

let l = length

let l - 4 = width

2l + 2(l - 4) = 20

2l + 2l - 8 = 20

4l = 28

l = 7

w = 3

Area: 7 x 3 = 21


Related Questions

What is the value of X please?

Answers

Answer:

x = 30°

Step-by-step explanation:

the small triangle is equilateral

That means that side with angle x that shares the same side with the other triangle is also 40

so its isosceles

in the equilateral, all angles measure 60

so 180 -60 = 120

180 - 120 = 60

60/2 = 30

Answer:

nope i tried and i couldnt get it

What is the area of a square thats 34 by 24? (I need someone with good theripist skills please T^T)

Answers

Answer: oh that's ava

Step-by-step explanation: ;w; I still don't know them-

Answer:

816

Step-by-step explanation:

also hazzy you can talk to me *hugs him* UwU dis ish toga btw

PLEASE HELP!!!!

Marvin is a builder. A client gave Marvin this diagram of the dimensions of the triangular shelves that he would like Marvin to
build for his daughter's room.


Unfortunately, the client only sent him one of the angle measurements needed.
Which equation could be used to find the value of 2?

A. 180 - [180-2(70)] = x
B. 180 - 2(18) = x
C. 180 - 70 = x
D. 180 - 2(70) = x

Answers

The answer would be A. The triangle with the 70 seems to be isosceles and that means that two of the angles equal 70. 70+70=140. Subtract 140 from 180 to find the third angle because every triangle has a total of 180 degrees. Due to the fact that x and the 40 degrees are on the same line, they will equal 180 degrees. So, 180-40=140. X=140. I hope this helps

In ΔUVW, u = 190 cm, v = 380 cm and w=560 cm. Find the measure of ∠W to the nearest 10th of a degree.

Answers

Answer:

157.2

Step-by-step explanation:

delta math

what is the area of the triangle 10,24,26

Answers

Step-by-step explanation:

i d like to help but i fon knoeww

Which expression is NOT equivalent to the expression 8m + 12?
A - 1/2 (16m + 24)
B - 4 (2m + 3)
C - 2 (4m + 6)
D - 8 (m +12)

Answers

Answer:

D

Step-by-step explanation:


In the diagram below, O is circumscribed about quadrilateral ABCD. What is
the value of ?


Answers

Answer:

21

Step-by-step explanation:

Trust

The value of x is 21 because, in a quadrilateral, the sum of the opposite angles is equal to 180 degrees. option (A) is correct.

What is quadrilateral?

It is defined as the four-sided polygon in geometry having four edges and four corners and two pairs of congruent sides.

We have:

In the diagram below, O is circumscribed about quadrilateral ABCD.

In a quadrilateral, the sum of the opposite angles is equal to 180 degree

5x + 75 = 180

5x = 105

x = 21

Thus, the value of x is 21 because, in a quadrilateral, the sum of the opposite angles is equal to 180 degrees. option (A) is correct.

Learn more about the quadrilateral here:

brainly.com/question/6321910

#SPJ2

Siri is grocery shopping. She is buying macaroni. One box is 6 inches long, 1 inch wide and 9
inches tall. The second box is 3 inches long, 3 inches wide and 6 inches tall. Which box holds
more macaroni?

Answers

Answer:

The second box

Step-by-step explanation:

The volume of a pyramid can be given by the formula:  V=31​Ah. Where.  A:  Area of the V=(1/3)(B)(h)

multiply both sides by 3

3V=Bh

divide both sides by B

3V/B=h

Therefore, If it is wider it has more space to carry more items such as macaroni.

A rainstorm in Portland, Oregon, has wiped out the electricity in about 7% of the households in the city. A management team in Portland has a big meeting tomorrow, and all 6 members of the team are hard at work in their separate households, preparing their presentations. What is the probability that none of them has lost electricity in his/her household

Answers

Answer:

0.647 = 64.7% probability that none of them has lost electricity in his/her household

Step-by-step explanation:

For each household, there are only two possible outcomes. Either they lost electricity, or they did not. The probability of a household losing electricity is independent of any other household. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

A rainstorm in Portland, Oregon, has wiped out the electricity in about 7% of the households in the city.

This means that [tex]p = 0.07[/tex]

6 members

This means that [tex]n = 6[/tex]

What is the probability that none of them has lost electricity in his/her household?

This is P(X = 0). So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{6,0}.(0.07)^{0}.(0.93)^{6} = 0.647[/tex]

0.647 = 64.7% probability that none of them has lost electricity in his/her household

solve for the value of s​

Answers

Answer:

s = 7 degrees

Step-by-step explanation:

All the angles have to add up to 180, so take 180 - 90 - 54 (the angles you know), and set them equal to 4s + 8. You get 36 = 4s + 8, subtract 8 from both sides, divide by 4, and you get that s = 7 degrees

Hopefully this helps! Let me know if you have any questions

In a race, 22 out of the 25 bicyclists finished in less than 56 minutes. What percent of bicyclists finished the race in less than 56 minutes? Write an equivalent fraction to find the percent. 22 x % % 25 x 100​

Answers

Answer:

uhhm uh i think its uh.. a carrot :/

Step-by-step explanation:

Answer:

88%

Step-by-step explanation:

22/25 × 4/4 = 88/100 = 88%

Which of these is NOT a Pythagorean triple?

Answers

Last one is not.
8^2+40^2=41^2
64+1600=1681
1664 is not equal to 1681

Someone help me with all of this I’m confused so pls help me!

Answers

Answer:

i never knew tommy innit needed help with his homework

Step-by-step explanation:

Answer:

Photosynthesis takes place in the chloroplast of plants. Plants use light energy, also known as radiant energy, to change carbon dioxide and water into something new. Radiant energy is changed into chemical energy. Glucose and oxygene (???)

Step-by-step explanation:

I think I did something wrong here.

Good luck <3

i need the answer no playing around please and if the answer is right i will give you a thanks and full stars pleaseeeee

Answers

Answer:

50+50x

Step-by-step explanation:

they're asking you to use distributive property

so what you have to do is multiply everything that is in the parenthesis by 10

5x10=50

5x10x=50x

so the answer is 50+50x

have a great day :D

Answer:  50 + 50x

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

Explanation:

To get this answer, we multiply the outer term 10 by each term inside

5*10 = 505x*10 = 50x

I'm using the distribution rule or distributive property. So that's why (5+5x)10 is the same as 50+50x

We could arrange the terms to get 50x+50 if you wanted.

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

Extra info (optional section):

Let's say that instead of 10, we had a smaller value like 2

(5+5x)2 would mean we have two copies of (5+5x) added together

So we'd have (5+5x)+(5+5x) = (5+5)+(5x+5x) = 10+10x

Then note how the distributive property says

(5+5x)*2 = 5*2+5x*2 = 10+10x

This is one example that helps us see how the distributive property is correct.

In a unit circle, the point (-0.5,0.866) lies on the terminal side of an angle, theta. What is the sine of this angle?

Answers

Answer:

Step-by-step explanation:

The unit circle has a hypotenuse of 1.

[tex]sin\theta=\frac{y}{h}\\ \\ sin\theta=0.866[/tex]

There are 120 people in a sport centre.
78 people use the gym.
46 people use the swimming pool.
45 people use the track.
21 people use the gym and the pool.
16 people use the pool and the track,
24 people use the gym and the track.
9 people use all three facilities,
Given that a randomly selected person uses at least two facilities, what is the probability they
use all the facilities?

Answers

Answer:

43/120 ≈ 0.3583

Step-by-step explanation:

Adding up the folks who use two facilities counts the folks who use all three 3 times. So, the number who use two or more facilities is ...

 21 +16 +24 -2(9) = 43 . . . . people who use 2 or more facilities

The probability that a person chosen randomly from the 120 at the sports center uses at least 2 facilities is ...

43/120 ≈ 0.3583

_____

The given numbers add up as follows:

 Gym only: 42

Pool only: 18

Track only: 14

Gym and Pool only: 12

Gym and Track only: 15

Pool and Track only: 7

Gym and Pool and Track: 9

No facilities: 3

Help please asap !!!

Answers

9514 1404 393

Answer:

v(t) = $342,000×1.06^tv(8) = $545,096v(15) = $819,623

Step-by-step explanation:

When the growth (or decay) amount is a fraction or percentage of the current amount, an exponential model is indicated. Here, it will be of the form ...

  value = (initial value) × (1 + (growth rate))^t

where t is the time period corresponding to the growth rate.

We are given that the initial value is $342,000 and the growth rate is 6% in a year. So, the model can be ...

  value = 342,000×1.06^t . . . . . where t is years after 2017

__

In 2025, we are 8 years after 2017, so the value is predicted to be ...

  value = $342,000×1.06^8 ≈ $545,096 . . . in 2025

__

In 2032, we are 15 years after 2017, so the value is predicted to be ...

  value = $342,000×1.06^15 ≈ $819,623 . . . in 2032

Please help me and give me explanation and stop giving me links you virus people. Please help me out.

Answers

Answer: Fifth

Step-by-step explanation: Second week really had the most sales, but it was not an option. Fifth week had the second most sales, and it WAS an option.

Answer:

Fifth.

Step-by-step explanation:

Second would have been the answer BUT second isnt a option.

HELPP ILL GIVE BRAINLESS

Answers

Answer:

Scale Factor is 2.5

Step-by-step explanation:

Write the equation of a line in point-slope form whose slope is 7 and passes through the point (7, -2).

Answers

Answer:

Step-by-step explanation:

m=7

So by using point slope form

y-y1=m(x-x1)

y-(-2)=7(x-7)

y+2=7x-49

y-7x+51=0

4. Joe bought a car for $25,000 that was originally selling for $32,000. What percent discount did he receive?​

Answers

15% I think so tho don’t trust me Bc I’m the worst person at math

Find the surface area of the square pyramid. A) 80 in2 B) 105 in2 C) 160 in2 D) 210 in2

Answers

Answer:

The answer is C) 160 in2

Step-by-step explanation

Easy!

5x5=25

8x5=40x4=160

The surface area of the square pyramid is, A. 80 in².

What is a pyramid?

A three-dimensional figure is a pyramid. Its base is a flat polygon. The remaining faces are all triangles and are referred to as lateral faces.

The number of sides on its base is equal to the number of lateral faces. The line segments that two faces intersect to form its edges. The intersection of three or more edges forms a vertex.

The given figure is a pyramid having a square base.

The pyramid also has four triangular faces, each having a base of 5 in and a height of 8 in.

Therefore, the surface area of the pyramid is,

= 4[(1/2)×5×8] square inches.

= 80 in².

learn more about pyramids here :

https://brainly.com/question/17615619

#SPJ3

please help me please i really need help please

Answers

Answer:

option A is the correct one.

this answer is d dhrjejrhrjrjrjrj sjejej

How do you find the perimeter and area of each figure

Answers

Answer:

Find the perimeter and area of each individual cube then add them up,

Area=length times width

Perimeter=4 times side

Step-by-step explanation:

The Ratio of Girls to Boys:
The ratio of boys to girls in a summer camp is 2:5.
there are 90 girls in the camp. How many boys are in
the camp?

Answers

Answer:

36:90

Step-by-step explanation:

Boys: Girls

2     :   5

Question: How many boys are there if there are 90 girls?

The question is basically asking an equivalent ratio...

Let x be the number of boys.

[tex]\frac{2}{5}[/tex] = [tex]\frac{x}{90}[/tex]

90 ÷ 5 = 18

So, if you multiply 18 by the number of the previous girls (5) you get 90

Therefore, you multiply 18 with the previous no. of boys (2) and that would be you equivalent answer!

2×18= 36

ANSWER NOW AND ILL GIVE BRAINLIEST THANKS

Answers

Answer and explaination:

a. 28

12/3=4

4*7=28

b. 9

21/7=3

3*3=9

Please help me I tired of keep asking. If you have a heart you would help me and give me the right answer Please (NO LINKS) (NO LYING )

Answers

Answer:quit

Step-by-step explanation:that looks lard

help me please :)))))))))))

Answers

Answer: Can you pleaes post the pic again it is not clear

Step-by-step explanation:

WILL GIVE BRAINLEIST SO PLZ HELP IM VERY DESPERATE!

Answers

Answer: easy is 6/5

Step-by-step explanation:

Here why 3/2 times 4/5

Try the app Gauthmath!!!!! Like it will work like wonders

Which is equivalent to P(z ≥ 1.4)?

Answers

Answer:

1-P(z<1.4)

Step-by-step explanation:

Trust me the answer is 1-P(z<1.4).

BTW the thing between 1 and P is a minus sign

Answer:

B. 1-P(z<1.4)

8%

B. 26%

Step-by-step explanation:

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