1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Verizon [17]
3 years ago
15

The length of a rectangle is 2x + 4 and the width is x + 8. If the perimeter of the rectangle is 96, use the value of x to find

the length and width of the rectangle.​
Mathematics
1 answer:
IRINA_888 [86]3 years ago
7 0

Hey there! I'm happy to help!

The formula for the perimeter of a rectangle is 2L+2W=P where W is the width and L is the length. This is because we have our two sides that are lengths and our two sides that are widths (different values) and we add them together to see what the distance around the whole rectangle is.

So, let's insert these values into the equation.

2(2x+4)+2(x+8)=96

We use the distributive property to remove the parentheses (which is us multiplying our equations for length and width by two).

4x+8+2x+16=96

We combine the like terms.

6x+24=96

We subtract 24 from both sides.

6x=72

Divide both sides by 6.

x=12

Now that we have our value of x, we can plug it into our length and width equations to find those values.

LENGTH:

2x+4

2(12)+4

24+4

28

WIDTH:

x+8

12+8

20

So, our length is 28 and our width is 20.

Have a wonderful rest of your day and keep on learning! :D

You might be interested in
Mary walks from corner D to corner E to corner F on a city block that measures 264 feet wide and 900 feet long. Kate walks diago
Kaylis [27]

Step-by-step explanation:

we have a rectangle, that is then cut in half diagonally into 2 right-angled triangles.

in our problem it does not matter which side is the larger and which is the shorter one, because the distance calculation for both cases involve one short and one long side. the sequence does not matter.

Mary walks one short and one large side to get to the opposite corner (from D to F) :

264 + 900 = 1,164 ft

Kate walks diagonally. and that diagonal is the Hypotenuse of the right-angled triangle with a short and a long side of the rectangle.

so, Pythagoras applies :

c² = a² + b²

with c being the Hypotenuse (the side opposite of the 90° angle), and a and b are the legs.

in our case that means

diagonal² = 264² + 900² = 69,696 + 810,000 =

= 879,696

diagonal = sqrt(879,696) = 937.9211054... ft ≈ 938 ft

so, Kate walked

1,164 - 938 = 226 ft

less than Mary.

4 0
1 year ago
Please solve! Thx! 6 = 20 - 3x
kumpel [21]

Answer:

5

Step-by-step explanation:

6=20-3x

combine

6-20=-3x

-14 = -3x

divide by -3

-14/-3 = -3x/-3

x = 4.666 repeatedly

x = 5 approximately

5 0
3 years ago
Which of the following is not a factor that may affect biodiversity?
Mandarinka [93]
B!!!!!!!!!!!!!!!!!!!!!!!!!
6 0
3 years ago
Read 2 more answers
Apply the product rules to determine the signof each expression ​
Inessa05 [86]

Answer:

- + - = +

+ + + = +

+ + - = -

- + + = -

Step-by-step explanation:

Thanks hopes it helps

4 0
3 years ago
I am having trouble learning how to convert an equation to standard form can someone please explain this to me? ( my teacher ten
Molodets [167]
First, you have to simplify the equation:
y+3 = 3(x+5)
y+3=3x+15
So you multiply what’s inside the brackets (x+5) by the factor (3). So 3•x=3x, 3•5=15.
Then you rearrange the equation as necessary to convert it into standard form, which is Ax + By = C
3 0
3 years ago
Other questions:
  • __ FeC2O4 +__ CO2->__ Fe2 (C2O4)3
    5·2 answers
  • What would the models in step a and b look like 5,200?how can you rename 5,200 as hundreds?
    14·1 answer
  • Please help!! (click on pic)
    12·1 answer
  • Find the length of side x in simplest radical form with a rational denominator.
    13·1 answer
  • Jack and Jill are trying to find the slope of a line segment connecting two points, (x1, y1) and (x2, y2). Jack uses the formula
    10·1 answer
  • 5(x – 4) + 3x – 9x = 6 – (2x + 5) + 8x
    9·1 answer
  • #6.
    15·1 answer
  • The length of a rectangle is 5cm more than its breadth . if the perimeter of the rectangle is 40cm , find the dimension of the r
    10·2 answers
  • A) Patty Stacey deposits $2600 at the end of each of 5 years in an IRA. If she leaves the money that has accumulated in the IRA
    12·1 answer
  • sally works in a factory that produces 1,000 televisions each day. when 40 televisions were sampled, it was found that 6 were de
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!