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
zepelin [54]
2 years ago
12

If the length of a rectangle is three times it’s width and it’s parameter is 24cm what is the area

Mathematics
1 answer:
katrin [286]2 years ago
6 0

Answer:

Area = 27 cm²

Step-by-step explanation:

let L be the length of the rectangle

    w the width

    P the perimeter

    A the area

<u>Formulas</u> :

P = 2×(L + w)

A = L × w

<u>We are Given</u> :

L = 3w

P = 2×(L + w)

⇔ 24 = 2×(3w + w)

⇔ 24 = 2×4w

⇔ 24 = 8w

⇔ w = 24/8 = 3

Then

L = 3w = 3×3 = 9

We obtain L = 9 and w = 3.

Then

A = L × w

  = 9 × 3

  = 27

You might be interested in
I WILL MARK YOU THE BRAINLIEST!!!!!!!!! AND GIVE LOT'S OF POINTS On a road trip, a family drives 350 miles per day. How many day
UNO [17]
The family needs 4 days to cover 1,400 miles
4 0
3 years ago
30 ounces is how many pounds
Effectus [21]

the answer is 1.875 pounds

5 0
3 years ago
Can someone help me?
Ivenika [448]

Answer:

18

Step-by-step explanation:

Hope this helps!

3 0
3 years ago
Read 2 more answers
X(x+3) + 34 = (x +5)(x+2)
My name is Ann [436]
X(x + 3) + 34 = (x + 5)(x + 2)

First, expand to remove parentheses. 
x^{2} + 3x + 34 =  x^{2} + 2x + 5x + 10
Second, add '2x + 5x' to get '7x'.
x^{2} + 3x + 34 =  x^{2}  + 7x + 10
Third, cancel out 'x^{2}' on both sides.
3x + 34 = 7x + 10
Fourth, subtract '3x' from both sides.
34 = 7x + 10 - 3x
Fifth, subtract '7x - 3x' to get '4x'.
34 = 4x + 10
Sixth, subtract '10' from both sides.
34 - 10 = 4x
Seventh, subtract '34 - 10' to get '24'.
24 = 4x
Eighth, divide both sides by '4', leaving the 'x' by itself.
\frac{24}{4} =x
Ninth, since '24 ÷ 4 = 6', simplify the fraction to '6'.
6 = x
Tenth, switch your sides to get the answer.
x = 6

Answer: x = 6

4 0
3 years ago
Plzzz help meeee!! I dont know this just helpin a friend!
Dennis_Churaev [7]

okay... THE ANS IS 5/35 IS THE RIGHT ONE

7 0
3 years ago
Other questions:
  • HURRY PLZ !!!! Based on the family the graph below belongs to, which equation could represent the graph?
    11·2 answers
  • 5 divided by 783 is what
    12·1 answer
  • What is the square root of 979???​
    9·1 answer
  • The Equation is 34 + 4 ⋅ 5 = ____. (input whole numbers only)
    13·2 answers
  • Among 6 electrical components exactly one is known not to function properly. If 2 components are randomly selected, find the pro
    5·1 answer
  • 144 seventh graders would check out fancy books
    12·2 answers
  • How many 5/16's are in 1 1/17? help pls
    15·1 answer
  • Sara has a spinner with 12 equal sections of blue, green, red and yellow. What is the probability she will spin yellow or green?
    15·2 answers
  • Which of the following sets of sides does not form a right triangle?
    11·1 answer
  • A rental car company charges $90 per week and $0.22 per mile or $40 per week and $0.32 per mile. How many miles per week must a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!