3. The width of a rectangle is 4 feet less than the length. The area is
12 ft. Find the dimensions of the rectangle.

Answers

Answer 1

Answer:

L = 6, w = 2

Step-by-step explanation:

Let w = width of rectangle

Let L = length of rectangle

w = L - 4

Area of rectangle = Lw

L (L - 4) = 12

L^2 - 4L = 12

L^2 - 4L - 12 = 0

(L - 6)(L + 2) = 0

L - 6 = 0

L = 6 (the other option doesn't work because dimensions can't be negative)

w = L - 4

w = 6 - 4

w = 2

Double check

A = Lw

A = 6 x 2

A = 12

It matches so we are right.


Related Questions

PLEASE HELP ME!! I WILL GIVE BRAINLIEST. ITS DUE IN AN HOUR

Answers

Answer:

1. w+24=42

2. 18

Answer:

not 100% but choose w+24=42 and 18 pounds for the box

Step-by-step explanation:

if its 42 pound i total and they told yoy the amount they have for the honeycrisp subtract 42 -24 = 18. 18 is the amount of golden appels


Please help me I’ll mark brainliest:)

Answers

answer: x=5

explanation: use the pythagorean theorem.
13^2=12^2+x^2
169=144+x^2
25=x^2
x=5


There u go hehehehewh full question

Answers

don’t click the link 1 and 2 i thinks it’s B i’m not sure tho

Marla's mom bought a 36-pack of water bottles at the supermarket. Each bottle has 500 mL of water. How many liters of water is this?

Answers

Answer:

18 L

Step-by-step explanation:

36 packs * 500 mL =  18000 mL

18000 mL / 1000 = 18 L

A tourist attraction experienced a 3.75% fall in visitor numbers in June, compared to the previous month due to bad weather There were 121660 visitors in June How many visitors were there in May? B) In July there were 4.5% more visitors than in May What was the percentage increase in visitor numbers from June to July?

Answers

Answer:

(A) 126400

(B) 8.57%

Step-by-step explanation:

(A) According to the scenario, calculation of the given data are as follows,

Visitors in June = 121660

Let visitors in May = X

Difference in visitors number in June = 3.75% decrease

So, we can calculate the visitors number in may by using following formula,

Number of visitors in June = X - 3.75%X

121660 = 96.25%X

X = (121660 × 100) ÷ 96.25

X = 126400

Hence, Number of visitors in may = 126400

(B). Difference in visitors in July than in May = 4.5% increase

So, Number of visitors in July = 126400 + (126400 × 4.5%)

= 126400 + 5688

= 132088

Now, we will calculate increase in percentage by using following formula,

Increase percentage = (132088 - 121660)  ÷ 121660

= 10428 ÷ 121660

= 0.0857 or 8.57%

Can you help me with my work

Answers

Answer:

all u have to do is count how many 2 there are then put that in and do the same for the 8

Step-by-step explanation:

Answer:

[tex]2^{6} *8^{4}[/tex]

Step-by-step explanation:

The ratio of nonfiction books to fiction books on a shelf is 5:3. There are 12 fiction
books on the shelf. How many books are on the shelf?

Answers

Answer:

20

Step-by-step explanation:

the ratio is 5:3 the you divide the 12 fiction by 3 you get 4 so if the fiction is 4 then you times it by 5 and you get 20

The ratio of fiction books to nonfiction books on the shelf is 5:3, if there are 12 fiction books are on the shelf, then total number of books on the self, 32

What is the ratio?

A ratio in mathematics is a comparison of two or more numbers that shows how big one is in comparison to the other. The dividend or number being divided is referred to as the antecedent, while the divisor or number that is dividing is referred to as the consequent.

Given that,

The ratio of nonfiction books to fiction books on a shelf is 5:3

There are 12 fiction books on the shelf

Total number of books on the self  = ?

Suppose, the total number of books  = x

Nonfiction = x - 12

Ratio =   nonfiction/fiction

   5/3     =    x-12/12

   x      =    32

Hence, the total number of books is 32

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Coom somebody help me with this problem, please.*
*brainiest goes to first answer and correct answers

Answers

Answer:

A. is 4

B. is 3

C. is 1

D. is 2

I need help with this question ( see image). Please show workings.​

Answers

Answer:

(A) 236°

Step-by-step explanation:

270° - 34° = 236°

(07.07) H U R R Y, please ;) 15 points!
Tracey built a small boat and recorded the distance it traveled. The table below shows the distance traveled (f) during the first 4 seconds after starting (p).


Elapsed Time
(seconds) Distance Traveled
(feet)
1 4.2
2 8.4
3 12.6
4 16.8


Which of the following equations represents the relationship between the distance traveled and the elapsed time?
p = 4.2f
f = 4.2p
p = 4.2 + f
f = 4.2 + p

Answers

im not sure i think its 14.2

Worth five points! Will mark the first person who answered with an actual correct answer brainliest and i don't lie about brainliest!! Please no nonsense answers I just want help :(


Triangle DEF is an isosceles triangle.


DE = EF

m⦟D = 26°


What is m⦟F?

A. 26°

B. 64°

C. 77°

D. 128°

Answers

Answer:

The answer is 77 degrees

Michael is buying new tile for his bathroom. The bathroom is 6 feet wide and 7 feet long. It costs $1.75 per square foot of material for the bathroom. If Michael goes to the store with $70, will he have enough money to buy the material. Why or why not.

Answers

Answer: yes because  all the math adds up to 22.75 and he has 70

Step-by-step explanation:

What’s the answer -105+(-6)=

Answers

The answer should be -111

the answer for your question is from what i got of course is, -111

1-cosx/1+cosx=secx-1/secx+1
Verify the identity. I tried all identities that I could, but could not find how it worked. Can you show me how to verify with all steps?

I usually do not ask on brainly, but I've tried everything else and still got nothing.
Currently in Algebra 2 and in the 9th grade.

Answers

Answer:

Sorry cannot help you, I'm only in year 8 (7th grade if I'm correct), and am horrible at Algebra. I'm sorry :(

De las siguientes oraciones ¿Cuál es una proposición?
a)El sol es una estrella
b)El autor de "La vida es sueño"
c)¡Pon atención!
d)¿Cuándo es el examen de historia?

Answers

Answer:

c

Step-by-step explanation:

Answer:

translation: Of the following sentences, which is a proposition? a) The sun is a star b) The author of "Life is a dream" c) Pay attention! d) When is the history exam also its c i think

Step-by-step explanation:

what type of association is there ??

Answers

Answer:

Negative because the dots travel down away from the positive area

PLEASE HELP NO LINKS IM TIMED

Answers

it is c bc u divide and then it will be alone it is c

Answer:

3: multiply by -2

6: y= 2 2/9

Hope this helped!

Can someone help me on this question?

Answers

Answer:

90°

Step-by-step explanation:

opposite angles of quadrilateral is 180 so

<d is 180-90 = 90

what is the probability of a chance event is 0.05, it to happen when compared to a chance event with a probability of 0

Answers

Answer:

I can't understand

Step-by-step explanation:

I will just try to rewrite your question so someone lese can answer it.

"What is the probability of a chance event, with a probability of 0.05, to happen when compared to a chance event with a probability of 0."

or just what is the probability(how high or low are the chances) of an event with a very low chance of happening when compared to an event that can never happen.

In the standard equation of a circle (x – h)2 + (y – k)2 = r2, h and k are...

Answers

Answer:

see explanation

Step-by-step explanation:

The standard form of the equation of a circle is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

What is the volume of the right rectangular prism with a length of 2 mm a width of 4 mm and a height of 8 mm

Answers

Answer:

2 x 4 x 8 = 64

Step-by-step explanation:

Multiply all given lengths when finding the volume of a rectangular prism.

George washington Who was as a president

Answers

Answer:

George Washington was the first president of the United States of America.

Answer: George washington

Step-by-step explanation:

Need to find JL Please awnser

Answers

Answer:

is that paper omg your in school lucky

choices:
x=360-114
x=114-90
360=x +90+114​

Answers

Answer:

see explanation

Step-by-step explanation:

The sum of the angles around D = 360° , then

x = 360 - (114 + 90) ← equation to find x

  = 360 - 156

  = 204

2. Eli has 600 cubes that are 1 cubic inch. Select the smallest length a cube- shaped box can have while being able to hold the 600 cubes. A 7 in. B 8 in. C 9 in. D 10 in.

Answers

Answer:

9 in

Step-by-step explanation:

We need to find x in x^3 > 600

For x=8, 8^3 = 512 < 600 (Too Small)

For x=9, 9^3 = 729 > 600 (Just right)

For x=10, 10^3 = 1000 > 600 (Too big)

Therefore, the smallest length of the cube-shaped box is 9 in.

i need this done pls :)

Answers

Answer:

300....?

Step-by-step explanation:

use the substitution method to solve
3x + 2y=12
y=2x -1​

Answers

Answer:

1. y=2

2. y= - 2

Step-by-step explanation:

Thats my answer hope it helps

Answer:

the solution is : (2 , 3)

Step-by-step explanation:

hello :  here is an solution

3x + 2y=12.....(*)

y=2x -1​.....(**)

put the value for y  in (*) :

3x + 2(2x-1)=12

3x+4x-2 = 12

7x =14

so : x =2

but : y=2x -1

y =2(2)-1 = 3

the solution is : (2 , 3)

At a state fair, every go-kart goes at most 40 mi/h.
1) Let s represent the speed of a go-kart.
Which inequality represents the situation?
A. 8 > (line underneath) 40
B. s < (line underneath) 40
C. s > 40
D. s < 40

Answers

Answer: s _< 40

Step-by-step explanation:

The correct inequality which represents the situation is,

⇒ s ≤ 40

What is Inequality?

A relation by which we can compare two or more mathematical expression is called an inequality.

Given that;

At a state fair, every go-kart goes at most 40 mi/h.

Now, Let s represent the speed of a go-kart.

Hence, The correct inequality which represents the situation is,

⇒ s ≤ 40

Since, Symbol used for at most is, less than or equal to.

Thus, The correct inequality which represents the situation is,

⇒ s ≤ 40

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Evaluate the power: (−3)^4
A. 81
B. -81
C. 243
D. -331

Answers

Answer:

The answer is 81.

Step-by-step explanation:

Since the power of 4 is even, the result will be positive.

[tex] {3}^{4} [/tex]

Simplify.

[tex]81[/tex]

hence, the answer is Option A) 81.

The power would be= A.) 81

Which of the following sets of side lengths could produce a triangle? SELECT ALL THAT APPLY. (7TH GRADE MATH)
A) 3,6,9
B) 13, 5, 6
C) 5, 5, 10
D) 5, 7, 11
E) 4, 4, 4

Answers

Answer: C)5,5,10

Step-by-step explanation:

C




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