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
vampirchik [111]
3 years ago
7

A tank can be filled by one pipe in four hours and by a second pipe in six hours; and when it is full, the tank can be drained b

y a third pipe in three hours. If the tank is empty and all three pipes are open, in how many hours will the tank be filled?
a. 8 hours
b. 12 hours
c. 24 hours
Mathematics
1 answer:
irina [24]3 years ago
5 0
I think its a because the question says one pipe fills it in 4 hrs, then 2 pipes in 6 hrs, so 3 pipes in 8 hrs?!!?
is this ok?
You might be interested in
Help, help, help!!! I really need help on this whole page!!!! 8th grade math!!!
anastassius [24]
Trying using photo math or on google there is actually a slope calculator called functions calculator in stupid sorry for not answering it lol
4 0
3 years ago
Simplify -12x + 5x.<br><br> -17 x<br> -7<br> -7 x
Blababa [14]

Answer:

-7x

Step-by-step explanation:

==> -12x + 5x.

==> -12+5xx

==> -7x

8 0
2 years ago
Read 2 more answers
I'm confused! Given: f(x) = x 2 + 2x + 1, find f(x + h) and simplify. is that the derivative formula? what should I do?
ZanzabumX [31]
<span>x 2 + 2x + 1 if you wanted is just 4x+1

</span>
7 0
3 years ago
Determine the first four terms of the sequence in which the nth term is...
Anon25 [30]

Answer:

1/5, 1/6, 1/7, 1/8

Step-by-step explanation:

The formula for the sequence is (n+3)!/ (n+4)!

The first terms uses n=1

a1 = (1+3)!/ (1+4)! = 4!/5! = (4*3*2*1)/(5*4*3*2*1) = 1/5


The first terms uses n=2

a2 = (2+3)!/ (2+4)! = 5!/6! = (5*4*3*2*1)/(6*5*4*3*2*1) = 1/6


The first terms uses n=3

a3 = (3+3)!/ (3+4)! = 6!/7! = (6*5*4*3*2*1)/(7*6*5*4*3*2*1) = 1/7


The first terms uses n=4

a4 = (4+3)!/ (4+4)! = 7!/8! = (7*6*5*4*3*2*1)/(8*7*6*5*4*3*2*1) = 1/8

7 0
3 years ago
Read 2 more answers
PLZZZZ HELP 10 points
kherson [118]
4 packages of hotdogs and 5 packages of rolls
5 0
3 years ago
Read 2 more answers
Other questions:
  • My grandson came home with math homework. No instructions on how to do. Question: What is the difference between 10-5=5
    13·1 answer
  • Naoya read a book cover to cover in a single session, at a rate of 55 pages per hour. After 4 hours, he had 350 pages left to re
    11·1 answer
  • Find the equation of the line.
    8·1 answer
  • I have SAT's tomorrow and need help with math...
    11·1 answer
  • Noah and Diego left the amusement park’s ticket booth at the same time. Each moved at a constant speed toward his favorite ride.
    7·1 answer
  • A survey of 140 freshmen business students at a local university produced the results listed below. How many students took only
    15·1 answer
  • Please help solve this 6r-r+4
    5·2 answers
  • I need help in solving a math problem.
    5·1 answer
  • Good evening every one sorry to brother u but can someone answer this
    14·1 answer
  • Price of Plates8What is the slope ofthe line?76Price ($)NW 7 0 0Give your answer asa fraction in simplestform.KO01 2 3 4 5 6 7 8
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!