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
shutvik [7]
3 years ago
14

Water flowing at the rate of 15km/hr through a pipe of diameter 14cm into a cuboidal pond which is 50m long and 44m wide. In whi

ch time will the level of water in the pond rise 21cm?
Mathematics
1 answer:
katen-ka-za [31]3 years ago
5 0
Hello,

We must calculate the volume of water in one hour.

V=15000*PI*0.07²=230,9070600... m^3/h.

Volume of the pond=50*44*.21=462 m^3

Time=462 m^3/ 230.907... m^3/h=2,0008... h≈2 h


You might be interested in
Compared to the basic savings account
kolbaska11 [484]
I have a savings accout wit four dollars in it

6 0
4 years ago
Solve<br> h-w<br> Solve m = for the<br> 8<br> variable h.<br> I
Ilya [14]

Answer:

1) m = h - w/8

Subtract h from both sides.

m - h = -w/8

Subtract m from both sides.

-h = -m - w/8

Divide all terms by -1.

h = m + w/8.

2) m = h - w/8

Get rid of the denominator 8 by multiplying 8/1 to all terms.

8m = 8h - w

Add w on both sides and subtract 8m from both sides.

w = 8h - 8m

3) w = x + y/z

Get rid of the denominator z by multiplying it to all terms.

wz = xz + y

Subtract xz from both sides of the equation.

wz - xz = y OR y = wz - xz

4) w = x + y/z

Subtract x from both sides.

w - x = y/z

Get rid of the denominator by multiplying it to all terms.

wz - xz = y

Now factor the expression wz - xz.

z(w - x) = y

Divide both sides by w - x.

z = y / w - x

This is read as z equals to y divided by w minus x.

5) The area of a triangle is A = 1/2bh

First, get rid of the denominator by multiplying both sides by 2.

2A = bh

To find b, divide both sides by h.

2A/h = b

6) P = kt/v

Multiply both sides by v.

Pv = kt

Divide both sides by t.

Pv/t = k OR k = Pv/t.

Step-by-step explanation:

8 0
3 years ago
The container that holds the water for the football team is 1/2 full. after pouring in 9 gallons oo water, it is 4/5 full. how m
OLEGan [10]
.5x + 9 = .8x
9 = .3x
x = 30 gallons


8 0
3 years ago
A pole, 90 cm long, is painted green, white, and black in the ration 3:4:2. What length of the pole is painted black?
ollegr [7]
3u + 4u + 2u = 9u
9u = 90
1u = 90/9 = 10

since black is 2u ( from the ratio given)
2u = 10 x 2 = 20

Answer : 20cm of the pole is painted black.

The bar diagram is in the picture :)

3 0
4 years ago
Guys! Help me find how much of this circle is shaded!
Alona [7]

Answer:

The answer is 1/10

Step-by-step explanation:

Let us take the Shaded region be x

So,

2/5 + x = 1/2

Now, Solve for x

x + 2/5 = 1/2

5x + 2/5 = 1/2

2(5x + 2) = 5(1)

10x + 4 = 5

10x + 4 – 4 = 5 – 4

10x= 1

10x/10 = 1/10

x = 1/10

Thus, The value of x is 1/10

<h3><u>For</u><u> Verification</u>;</h3>

2/5 + x = 1/2

2/5 + 1/10 = 1/2

2 × 2/5 × 2 + 1/10 = 1/2

4/10 + 1/10 = 1/2

4 + 1/10 = 1/2

5/10 = 1/2

1/2 = 1/2

L.H.S = R.H.S

Hence Verified!

<u>-TheUnknownScientist</u><u> 72</u>

6 0
2 years ago
Other questions:
  • How do I do 8b(ii) ? Please help me thank you!
    11·1 answer
  • 6. (5y+2)+14x=5y+ (2+14x)
    13·2 answers
  • HELP PLSSS ASAPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!
    14·2 answers
  • Sammy was selling tickets for the football game. He sold five more adult tickets than senior tickets and twice as many children'
    9·1 answer
  • Which of the following is a radical equation?<br><br> X+5 - 12<br> x2 = 16<br> 3+xV7-13<br> 7x = 14
    5·1 answer
  • Fewer young people are driving. In 1995, 63.9% of people under years old who were eligible had a driver's license. Bloomberg rep
    8·1 answer
  • -2x2-2x+1<br> +(-3x2-x-1)<br> Add the following
    10·1 answer
  • Question 31 (Essay Worth 5 points)
    15·1 answer
  • The question is number 6 i don't know if I got it right I really need to know and this is solving quadratics by completing the s
    12·1 answer
  • Anyone please gives me the correct answer to this problem on Khan Academy. The assignment is due tomorrow, and I don't want to f
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!