casey's den is 10feet longer than it is wide. If the​ den's area is 119 square​ feet, what are the dimensions of the​ room?

Answers

Answer 1

Answer:

The width is 7ft and the length is 17 ft

Step-by-step explanation:

Let w represent the width of the room and L represents the length of the den.

Given that:

caseys den is 10feet longer than it is wide

Then;

w + 10 = L ---- (1)

The area of the den = 119 ft²

Area = w × L

119 = w × L  ---- (2)

From equation (1);

let w = L - 10.

Now we can replace the value of w into equation (2)

i.e.

(L - 10) × L = 119

L² - 10L - 119 = 0

(L + 7) ( L - 17) = 0

L + 7 = 0 or L - 17 = 0

L = - 7 ft  or L = 17 ft

Recall that:

w = L - 10

w = -7 - 10    or    w = 17 - 10

w = -17         or     w = 7 ft

The area of the den can now be:

Area = -17 ft × - 7ft   or       17ft ×  7 ft

Area = 119 ft²           or        119 ft²

Since it is ideal to use the positive integer,

Then the width is 7ft and the length is 17 ft


Related Questions

The sum of the numbers X, Y, and Z is 40. The ratio of X to Y is 1:2 and the ratio of Y to X is 2:5. What is the value of Y?​

Answers

Step-by-step explanation:

Since X : Y = 1 : 2, X = 0.5Y.

Since Y : Z = 2 : 5, Z = 2.5Y.

We have X + Y + Z = 4Y = 40. Hence Y = 10.

[tex]y=10[/tex]

Ratio:A ratio in mathematics shows how many times one number is contained in another. For instance, if a dish of the fruit contains eight oranges and six lemons, the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio of 4:3). The ratio of oranges to the overall amount of fruit is 8:14, and the ratio of lemons to oranges is 6:8 (or 3:4)  (or 4:7).A ratio can have any number of quantities, such as counts of people or things or measurements of length, weight, time, etc. Both numbers must be positive in most situations.Solution -

Given -

[tex]x+y+z=40\\x:y=1:2\\y:x=2:5[/tex]

To find - [tex]y[/tex]

Since,

[tex]x:y=1:2,x=0.5y\\y:x=2:5,z=2.5y\\x+y+z=4y+40\\y=10[/tex]

Therefore, [tex]y=10[/tex].

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determine the domain on the following graph

Answers

Answer:

(-3,7)

Step-by-step explanation:

What is 1/4 divided by 9/10 rewritten with an important fraction?

Answers

Step-by-step explanation:

[tex]{:}\hookrightarrow\sf \dfrac {1}{4}\div \dfrac {9}{10}[/tex]

[tex]{:}\hookrightarrow\sf \dfrac {1}{4}\times \dfrac {10}{9}[/tex]

[tex]{:}\hookrightarrow\sf \dfrac {10}{36}[/tex]

[tex]{:}\hookrightarrow\sf \dfrac {5}{18}[/tex]

Then she needs to find her "heart rate reserve" h by subtracting her average resting heart rate r from her maximum heart rate m. Write an equation she can use

Answers

Answer:

r-m=h

Step-by-step explanation:

Solve the system of equations y = -2x - 9 and -x + 3y = 8 using the substitution method.

Answers

Answer: (-5,1)

Step-by-step explanation: Explanation in picture.

Jasmine has taken an online boating course safety course and now completing her end-of-course exam . As she answers each question , the progress bar at the bottom of the screen shows what portion of the test she has finished. She has just completed Question 16 and the progress bar shows she is 20% complete. How many total questions are on the test ?​

Answers

Answer:

80

Step-by-step explanation:

20 percent is 16 questions

then 100/20=5

5 times 16 is 80

One fifth of a number is equal to triple that number less 28.
Let the unknown number be x. Write this word problem as an equation using the variable x.

Answers

Answer:

x=10

Step-by-step explanation:

x=(3x-28)5

-14x=-140

x=10

473 heartbeats in 5 1/2 minutes

Answers

Answer:

86 heartbeats per minute

Step-by-step explanation:

i assume that's your question?

the number of heartbeats per minute is 86.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, 473 heartbeats in [tex]5\frac{1}{2}[/tex] = 11/2minutes

Number of heart beats per minute = Total number of heart beats ÷ Number of minutes

= 473÷ 11/2

= 473×2/11

= 43×2

= 86 beats per minute

Therefore, the number of heartbeats per minute is 86.

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PLS HELP I'LL TRY TO GIVE BRAINLIEST
Solve each equation and prove that your answer solves the original equation.
25 - 3x = 40 1/3x - 12 = -3​

Answers

Answer:

25 - 3x = 40            ​x=-5

1/3x - 12 = -3           x=27

Step-by-step explanation:

25-3x=40 -> subtract 25 each side .... -3x=15 -> divide -3 each side...... x= -5

Which triangle is congruent to triangle ABC?

Answers

EFG

hope that helps :)

A rectangle is located on a coordinate plane. If the ordered pair (t, u) represents a vertex of this rectangle, which algebraic representation describes the effect of translating the rectangle 8 units up and 3 units left?

Answers

Answer: (t,u) -> (t-3, u+8)

Step-by-step explanation: Up is the y value and left is the x value.

In the point ( t,u) t is the x value and u is the y value.

Moving to the left, you subtract the value and moving up you add the value.

The answer would be (t, u) → (-t – 3, u + 8)

two angles from a linear pair. the measure of one angle is 2/3

Answers

Answer:

First angle = 117 degrees.

Second angle = 63 degrees.

Step-by-step explanation:

Sydney purchased a used car for $3,500. Her state charges a 5% tax for the car, $85 for registration, $60 for a new title certificate, and $35 for a state safety and emissions inspection. How much does Sydney need to pay for these extra charges, not including the price of the car?

Answers

Answer:

$355

Step-by-step explanation:

85+60+35=180

5% of 3,500 is 175

175+180=355

so if i did the math right that means the answer is $355

Hopefully the right answer

1) Suzanne will pay $14 to get her hair cut. She wants to leave the hairdresser a 15% tip. What is the total cost of the haircut, including tip?

Answers

Answer:

$16.10

Step-by-step explanation

14.00x .15=2.10

14.00+2.10=16.10

Two vertical angles have measures of (4x + 8) and (7x -22). What is the measure of the two angles?

Answers

Answer:

48

Step-by-step explanation:

Vertical angles are congruent

7x - 22 = 4x + 8     {Add 22 to both sides}

         7x = 4x + 8 + 22

        7x = 4x + 30         { subtract 4x from both sides}

7x - 4x = 30

         3x = 30

           x = 30/3

x = 10

4x + 8 = 4*10 + 8

          = 40 + 8

          = 48

7x - 22 = 7*10 - 22

            = 70 - 22

            = 48

Please help 15 points!!!

Answers

Answer:

she earns $10 per hour, and can earn $1 in 6 minutes (60 min divided by $10)

Step-by-step explanation:

Find the perimeter of the image below

Answers

Answer:

46

Step-by-step explanation:

Answer:

26.1

Step-by-step explanation:

Took the same test lol

A gym membership costs $25 to join, plus a $12 monthly fee. If Adam has spent $133 on his gym membership this year, for how many months has he been a member?

Answers

Answer:

HELP ME I GOT THE SAME QUESTION AND I'M DUMB :(

Step-by-step explanation:

Maggie has three pages of homework to do.If she can do 1/4 of a page in one hour, how many will her homework take

Answers

Answer:

The answer is 12 hours.

Step-by-step explanation:

If she completes 1/4 of a page in an hour completing one page will take her 4 hours after that you multiply it by 3 and get the total of 12 hours that is takes for her to do her homework

Answer:

the answer is 12 :)))))

Anton's mechanic charged $75 for a radiator and $50 per hour for labor. The total cost to install the radiator was $325. Approximately how long did it take the mechanic to install the radiator?​

Answers

Answer: 5 hours

Step-by-step explanation: because 50 multiply by 5 is 250 and more 75 for radiator

A 2-column table with 4 rows. Column 1 is labeled Store with entries A, B, C, D. Column 2 is labeled Advertised Bread Prices with entries 3 loaves for 5 dollars and 94 cents, 4 loaves for 7 dollars and 80 cents, 5 loaves for 10 dollars and 5 cents, 6 loaves for 12 dollars and 12 cents.

Camillo is making gourmet peanut butter and jelly sandwiches for a food challenge.

PLS HELP ASAP!!What is the unit price of a loaf of bread at each store?

Store A:

Store B:

Store C:

Store D:

Answers

Answer:

Store A:  

✔ $1.98 per loaf

Store B:  

✔ $1.95 per loaf

Store C:  

✔ $2.01 per loaf

Store D:  

✔ $2.02 per loaf

Step-by-step explanation:

Which rational number is also an integer

A. - 86 / 6
B. - 65/13
C. 43/5
D. 70/25

Answers

Answer:  B) 65/13

This is because 65/13 = 5 when using a calculator or long division. There are no fractional or decimal parts to the result 5, so 5 is an integer.

Something like 86/6 = 14.333 approximately showing the result is not an integer. The same applies to choice C and choice D as well.

i really need help- eeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

-2, -5, 2, then 5

Step-by-step explanation:

Answer:

-5, -2, 2, 5

Nina’s dog weighed 23.54 pounds last year. This year, her dog weighs 25.38 pounds. How many pounds did her dog gain this past year? PLS HELP ME!!!!!!!!!

Answers

Answer:

1.84

Step-by-step explanation:

25.38-23.54

3x+2y=8
5x+2y=12
what is the solution of the system of equations shown above?

Answers

I did the math X=2 y=1

The value of x=2 and y=1.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

3x+2y=8

5x+2y=12

Now, solving both using method of Elimination Method

3x - 5x = 8-12

-2x= -4

x = -4/ -2

x= 2

and, 3x+ 2y = 8

3(2) + 2y = 8

6  + 2y = 8

2y = 8-6

2y = 2

y = 2/2

y= 1

Hence, the value of x=2 and y=1.

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can someone explain how to solve this?

Answers

An incenter is equidistant to the sides of the triangle so PN = PO and PN = PM. PO = 21; LO = 27; PL = 42

What is the quotient 5/8 + 1/5?

Answers

Answer:

33/40

Step-by-step explanation:

cross multiply

5 x 5 = 25

8 x 1 = 8

25 + 8 = 33 (our numerator)

8 x 5 = 40 (our least common denominator)

help me. please math​

Answers

Answer:

$16

Step-by-step explanation:

60 + 4 = 64

64 ÷ 4 = 16

CHECK:

16 x 4 = 64

64 - 4 = 60

Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.

Answers

Given:

A figure.

To find:

The values of x and y.

Solution:

We know that, in a right angled triangle,

[tex]\sin \theta =\dfrac{Perpendicular}{Hypotenuse}[/tex]

[tex]\sin 60^\circ =\dfrac{x}{16}[/tex]

[tex]\dfrac{\sqrt{3}}{2} =\dfrac{x}{16}[/tex]

Multiply both sides by 16.

[tex]\dfrac{\sqrt{3}}{2}\times 16=\dfrac{x}{16}\times 16[/tex]

[tex]8\sqrt{3}=x[/tex]

And,

[tex]\cos \theta =\dfrac{Base}{Hypotenuse}[/tex]

[tex]\cos 60^\circ =\dfrac{y}{16}[/tex]

[tex]\dfrac{1}{2}=\dfrac{y}{16}[/tex]

Multiply both sides by 16.

[tex]\dfrac{16}{2}=y[/tex]

[tex]8=y[/tex]

Therefore, the missing side lengths are [tex]x=8\sqrt{3}[/tex] and [tex]y=8[/tex].

Please help me. I will
Mark whoever is first!!!

Answers

Answer:

750

Step-by-step explanation:

3000 divided by 4 =

750

Answer:

750 boxes

Step-by-step explanation:

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