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
mel-nik [20]
2 years ago
7

The guttering hold up to 20 litre of rain water. Work out the length of guttering in meters if the diameter is 11.5cm.

Mathematics
1 answer:
bazaltina [42]2 years ago
6 0

Answer:

1107.0213 cm

Step-by-step explanation:

Assuming this gutter is half a cylinder,

Volume of half a cylinder = 0.5(πr²l)²

where, Volume = 20l, π = 3.142, r = 0.5(11.5) and l = ?

But, the other units are in cm while the Volume is in liters, so let's convert the liters to cm³

It would be easier to convert the liters to m³ then to cm³ rather than converting directly. So,

1000 L = 1 m³

     1 L = ?

1 ÷ 1000 = 0.001 m³

      1 m³ = 1,000,000cm³

0.001 m³ = ?

0.001 x 1,000,000 = 1000 cm³

So, if 1 L = 1000 cm³

      20 L = ?

20 x 1000 = 20,000 cm³

Thus, 20,000 = 0.5(3.142 x 0.5(11.5) x l)

20,000 = 0.5(3.142 x 5.75 x l)

20,000 = 18.0665l

Make l the subject and divide both sides by 18.0665

length = 1107.0213 cm

You might be interested in
If x = 3 and y = 7 , evaluate the following expression: 20 − ( 3 y − 4 x )
xenn [34]

Answer:

20-3(7)-4(3)

20-21-12

-13

6 0
2 years ago
Read 2 more answers
FIRST ONE TO ANSWER GETS FREE 100 POINTSSSSSS and brainliest
ANEK [815]

Answer:

ok thanks bro lol thanks

3 0
2 years ago
Read 2 more answers
Write the explicit formula which can be used to represent the sequence 5,9,13,17
Oliga [24]

Answer:

4n+1

Step-by-step explanation:

Term 1: 4(1)+1 = 5

Term 2: 4(2)+1 = 9

Term 3: 4(3)+1 = 13

Term 4: 4(4)+1 = 17

4 0
3 years ago
Help meeee pleaseeeeee
Leto [7]

Answer: B, angle 1 and angle 7.

Step-by-step explanation: Of all the options provided, B is the only one where the the two angles are not congruent to each other. Also, same side interior angles are congruent, so...

5 0
2 years ago
Find the perimeter of the following rectangle.
Ede4ka [16]

So the formula to workout the area of a rectangle is height X width

so 11/3 x 5/8

which is 55/24 ft if they want a mixed number then... 2 \frac{7}{24\\}

hope this helps

6 0
2 years ago
Other questions:
  • from a rope that is 11.5 meters long, two pieces are cut from it that are 1 3\5 and 3 3/10 meters long. what is the length of th
    6·1 answer
  • The quantities x And u are proportional. What is the missing value in the table​
    11·1 answer
  • Need a little help on this simple math question
    10·2 answers
  • 1. Different students drew random samples of size 50 from the mystery bag. The number of red chips each drew is given below. In
    11·1 answer
  • How many millilitres of coconut milk will be required to make this recipe for seven people?
    7·1 answer
  • The mass of the part of a metal rod that lies between its left end and a point x meters to the right is 3x^2 kg. Find the linear
    13·1 answer
  • The following set of coordinates most specifically represents which figure?
    7·2 answers
  • Please help me out, thanks.
    12·1 answer
  • 3(3+X)= idk what the answer is
    11·2 answers
  • 3/10y - 2/5 i need to find the coefficient and i dont know how
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!