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
avanturin [10]
3 years ago
6

A tank can be filled by three pipes separately in 20,30,and 60 minutes respectively. In how many minutes can it be filled by the

three pipes acting together
Mathematics
1 answer:
vovikov84 [41]3 years ago
5 0

Answer:

Step-by-step explanation:

You might be interested in
Which expression is equivalent to -3(2m-1)-n?
Marta_Voda [28]

Answer:

=−6m−n+3

Step-by-step explanation:

(happy to help)

6 0
3 years ago
If f(x) = 2x + 3 and g(x) = 3x - 9, find f(g(x)).
Maksim231197 [3]

Answer:

6x-15

Step-by-step explanation:

First plug in 3x-9 for x

2(3x-9) +3

Multiply 2 by (3x-9)

2(3x-9)=6x-18

add 3

6x-18+3=6x-15

hope this helps :)

3 0
3 years ago
Read 2 more answers
Alys dog weighs 8 times as much as her cat together the 2 pets way 54 pounds how much does alleys dog way
daser333 [38]

Aly's dog weighs 6.75 lbs

You can find this by dividing 54 / 8 = 6.75

Hope that helps u!!

3 0
3 years ago
Read 2 more answers
What is the value of the expression below when z=2<br><br> 4z2-3z-4 please help
Phoenix [80]
The answer is 4z squared - 3z - 4
6 0
3 years ago
Is -6, -38 a solution to y= 7x+4
Sunny_sXe [5.5K]

Answer:

Yes, (-6,-38) is a coordinate pair off the equation

Step-by-step explanation:

Plug y=7x+4 into your graphic caculator

press 2ND, GRAPH and scroll up to see the point.

4 0
3 years ago
Other questions:
  • a designer wants to make a circular fountain inside a square of grass as shown at the right. What is a rule for the area A of th
    5·2 answers
  • Leota is having some friends over and is buying some drinks. She buys a 10 pack of canned soda for $3.00.
    14·1 answer
  • Help me please!!!!! I need help!!
    6·1 answer
  • Which expression means the same as 3 x 3/4?
    10·1 answer
  • A speed limit of 100 kilometers per hour is approximately equal to 62 miles per hour.
    9·1 answer
  • What are the roots of the following function?
    12·2 answers
  • A hypothesis will be used to test that a population mean equals 5 against the alternative that the population mean is less than
    6·1 answer
  • write a linear equation in slope intercept form to model the situation: A telephone company charges $28.75 per month plus 10 cen
    15·1 answer
  • A student traded four pieces of chocolate pour seven pieces of hard candy at this rate how many pieces of chocolate could be tre
    7·1 answer
  • Helppppp plzzzz I will mark brainliestttt
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!