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
zlopas [31]
3 years ago
15

the length of a rectangle is equal to triple the width.if the perimeter of the rectangle is 86cm,determine the length and the wi

dth
Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
4 0

Answer:

length of rectangle = 32.25 cm

  Width of rectangle = 10.75 cm

Step-by-step explanation:

Let the length of rectangle be x.

And width of rectangle be y.

According to the problem,

x = 3y    {Since the length of a rectangle is equal to triple the width}

Also,

Perimeter of rectangle = 86

or 2 (x + y) = 86

Plug x =3y in the above equation

We get,  2(3y + y) = 86

    2 * 4y = 86

     4y = 43

      y = 43/4 = 10.75

So, length of rectangle = 3 * 10.75 = 32.25cm

  Width of rectangle = 10.75cm

You might be interested in
I need help with this​
VLD [36.1K]

Answer:

im sorry wish i could

Step-by-step explanation:

4 0
2 years ago
Factor completely 10x2 + 2x − 8. (1 point)
ivanzaharov [21]

Step-by-step explanation:

10x²+2x-8=0

=>10x²+10x-8x-8=0

=>10x(x+1)-8(x+1)=0

=>(10x-8)(x+1)=0

=>2(5x-4)(x+1)=0

Option B

7 0
3 years ago
Read 2 more answers
Solve for x in the equation 2x^2-4x-9=29
Andrews [41]

Answer:

x = 1  ±2sqrt(5)

Step-by-step explanation:

2x^2-4x-9=29

Add 9 to each each side

2x^2-4x-9+9=29+9

2x^2-4x=38

Divide by 2

2/2x^2-4/2x=38/8

x^2 -2x =19

Complete the square

x^2 -2x + (-2/2)^2 = 19 +(-2/2)^2

x^2 -2x +1 = 19+1

(x-1)^1=2 = 20

Take the square root of each side

sqrt((x-1)^2) = ±sqrt(20)

x-1 =  ±sqrt(20)

Add 1 to each side

x-1+1 = 1  ±sqrt(20)

x = 1 ±sqrt(20)

Simplifying the square root of 20

x = 1  ±sqrt(4)sqrt(5)

x = 1  ±2sqrt(5)

3 0
3 years ago
How do you verify the identity?
rodikova [14]
Their both the answer hope this helps

5 0
3 years ago
Expand the expression and combine like terms.(2+2w)⋅4+9(w+3)
Nonamiya [84]
0.8+0.8w+9w+27
9.8w+27.8

3 0
3 years ago
Other questions:
  • Hannah has only nickels and dimes in her wallet she has a total of $2.50 and a total of 30 coins how many nickels does she have?
    7·1 answer
  • What are factors of 27?
    13·2 answers
  • For the sequence <img src="https://tex.z-dn.net/?f=a_%7Bn%7D%20%3D%202n%2F%28n%2B1%29" id="TexFormula1" title="a_{n} = 2n/(n+1)"
    5·2 answers
  • Please helppppppp me :)
    6·1 answer
  • HELP PLEASE!!!! ILL MARK U BRAINLESS FIRST PERSON TO ANSWER
    9·1 answer
  • Which of the following is equivalent to the expression below
    10·1 answer
  • Can you just please click on this and help
    7·2 answers
  • Can anyone help please?
    6·1 answer
  • Ill give brainlest if right
    6·1 answer
  • Chicago has an elevation of 991 feet above sea level. The elevation of Detriot is -923
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!