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
aliya0001 [1]
3 years ago
8

One pipe fills an empty tank in 3 hours. A second pipe fills the same tank in 6 hours. A third pipe can empty the full tank in 5

hours. If all three valves were left open, how long would it take to fill the empty tank?
Mathematics
1 answer:
aleksklad [387]3 years ago
7 0
6 would be your answer
You might be interested in
F(x) = + 2; vertical stretch by a factor of 5
Dima020 [189]

Answer:

69

Step-by-step explanation:

8 0
4 years ago
Suppose F and G are continuously∗ differentiable functions defined on [a, b] such that F0(x) = G0(x) for all x ∈ [a, b]. Using t
Orlov [11]

Answer:

The proof is detailed below.

Step-by-step explanation:

We will first prove that if H(x) is a differentiable function in [a,b] such that H'(x)=0 for all x∈[a, b] then H is constant. For this, take, x,y∈[a, b] with x<y. By the Mean Value Theorem, there exists some c∈(x,y) such that H(y)-H(x)=H'(c)(x-y). But H'(c)=0, thus H(y)-H(x)=0, that is, H(x)=H(y). Then H is a constant function, as it takes the same value in any two different points x,y.

Now for this exercise, consider H(x)=F(x)-G(x). Using differentiation rules, we have that H'(x)=(F-G)(x)'=F'(x)-G'(x)=0. Applying the previous result, F-G is a constant function, that is, there exists some constant C such that (F-G)(x)=C.

3 0
4 years ago
Garden one has 9 more bushes of red currant than garden two. If 3 bushes were transplanted from garden two to garden one, then g
Vesnalui [34]

Garden one and two are both unknown, so I am choosing to call garden 2 X and then label garden 1 with comparisons to X.

It is tempting to list:

Garden Two = X

Garden One = X + 9

BUT there is an easier way. We are told that when 3 bushes are taken from garden 2 (x-3) and put in garden 1 (x + 12) then garden one has 1.5 times more than garden two.

Set it up like this:

1.5 ( x - 3) = x + 12 (because 1.5 times garden 2 will give us garden 1)

1.5x - 4.5 = x + 12 (Distribute)

.5x = 16.5 (Use subtraction to move variables to the right and other numb left)

x = 33 for Garden 2

33  + 9 for Garden 1 = 42


7 0
3 years ago
Read 2 more answers
I need this please help me
ludmilkaskok [199]

9514 1404 393

Answer:

  L'(4, -3)

Step-by-step explanation:

The reflection over the horizontal line y=-1 effects the transformation ...

  (x, y) ⇒ (x, -2-y)

So, the coordinates of L are transformed to ..

  L(4, 1) ⇒ L'(4, -2-1) = L'(4, -3)

4 0
3 years ago
Help please
yawa3891 [41]

Answer:

C. 4.6

Step-by-step explanation:

If you subtract 3.0 from 1.4 you get 1.6, which is the can be added to 3.0 to find the missing value.

8 0
3 years ago
Other questions:
  • Evaluate <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Ba%7D%7Bb%7D%20" id="TexFormula1" title=" \frac{a}{b} " alt=" \frac{a}{b}
    11·1 answer
  • Astore offers a 15% dscount on all items in the store during a sale. Al store employees get an additional 10% employee discount
    14·2 answers
  • Answer all questions In one answer. thank you!
    12·1 answer
  • Can you help me with the answer to this question ?
    6·1 answer
  • An advertisement claims that a 5-pound box of detergent will wash 20 loads of a laundry. A 5-pound box costs $3.50. A 15-pound b
    11·1 answer
  • Tessa is in the track team. For practice and exercise, she runs 2.25 miles each day. At the end of 14 days, how many total miles
    15·2 answers
  • 3 multiplied ( x - 1) over 9
    6·1 answer
  • Need some help with this question
    10·2 answers
  • A rectangular prism has a length of 5 cm, a width of 7 cm, and a height of 4 cm. What is the volume of the prism?
    8·2 answers
  • (4xz)³-2xy <br><br>x= 2 y=(-4) z= 1 <br><br>plz help it's for homwork.​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!