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
Orlov [11]
3 years ago
13

The length of a rectangle is twice its width. The perimeter is 30. Find its dimensions

Mathematics
2 answers:
Wittaler [7]3 years ago
8 0

Step-by-step explanation:

given,

perimeter (p)=30

let the length be x and breadth be x÷2 (as the length is twice of its breadth)

now, perimeter (p)=30

or, 2(l+b)=30

or, 2(x+x/2)=30

or, 6x/2=30

or, 3x=30

therefore the value of x is 10.

the dimensions are,

so, length (l)=10 breadth (b) =10/2=5...ans

hope it will help uh.

bogdanovich [222]3 years ago
7 0

Answer:

Step-by-step explanation:

The width of the rectangle = x

Therefore the length of the rectangle = 2x, as it is twice its width

We know that the perimeter of a rectangle = 2 × (length + width)

So since the perimeter equals to 30, then we can form the equation:

                                      2×(2x+x) = 30

                                          2×(3x) = 30

                                                6x = 30

                                                   x = 5

width of the rectangle = x = 5

length of the rectangle = 2x = 2×5 = 10

If there is an unit which is in the question, remember to add it to the end of the answer. As you have not written any units in the posted question, I will leave it as it is.

Hope this helps :)

You might be interested in
the average weight of a baby birth is 7 pounds how many ounces is the average weight of a baby Can Y'all please help me
Savatey [412]
7 pounds converts to 112 ounces
5 0
3 years ago
There was a country concert held at the park. For every 3 men there were 5 women that went to the concert. If 30 more women atte
8090 [49]

Answer:

3m == 5w, that means for such unit, there is a 2 person difference

30 person difference = 30/2 = 15units

and again one unit means 3m and 5w

so 15*3men, and 15*5women

and you can check the difference is 30

8 0
3 years ago
In interval notation signs use what grouping symbol?
Vesnalui [34]

Answer:

either parentheses or brackets

Step-by-step explanation:

(x,y) means that the number is not included in interval notation

[x,y] means that the number is included in interval notation

3 0
3 years ago
PLEASE HELP! WILL MARK BRAINLIEST!! :D
netineya [11]

Hope this helps

Given a term in a geometric sequence and the common ratio find the first five terms, the explicit formula, and the recursive formula. Given two terms in a geometric sequence find the 8th term and the recursive formula. Determine if the sequence is geometric. If it is, find the common ratio.

6 0
3 years ago
Find the volume of a right circular cone that has a height of 11.8 ft and a base with a radius of 16 ft. Round your answer to th
andreyandreev [35.5K]

Answer:

3161.8 cubic foot

Step-by-step explanation:

V = 1/3BH = 1/3πr²H

V = 1/3 x 3.14 x 16² x 11.8 = 3161.77

4 0
3 years ago
Other questions:
  • Pictures below. Find x.
    10·1 answer
  • Write down the first five terms of a sequence where the nth term is given by n2 – 5
    15·1 answer
  • $15.75 music CD ; 4% tax
    7·1 answer
  • Help me please thanks
    15·2 answers
  • 42=18t +4 (t +5)<br><br><br> Plz help
    14·2 answers
  • A class counts how many vehicles drove past their school from 1:00pm to 2:00pm. There's 3 times as many cars as trucks
    7·1 answer
  • Two towns are 324 miles apart. on a map, they are 4 1/2 apart. the scale of the map is 1
    15·1 answer
  • -6-4+[-4] 0 [-4-[-3]]<br> [4² + 3²] ÷ 5
    14·1 answer
  • Pls help me out .....
    15·1 answer
  • Integrate this y=2x In(x²) at point x=3​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!