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
Komok [63]
3 years ago
7

An aquarium tank can hold 7200 liters of water. there are two pipes that can be used to fill the tank. the first pipe alone can

fill the tank in 48 minutes. the second pipe can fill the tank in 96 minutes by itself. when both pipes are working together, how long does it take them to fill the tank?
Mathematics
1 answer:
Arada [10]3 years ago
4 0

The first pipe pumps out

\dfrac{7200\text{ L}}{48\text{ min}}=\dfrac{150\text{ L}}{1\text{ min}}

while the second pipe pumps out

\dfrac{7200\text{ L}}{96\text{ min}}=\dfrac{75\text{ L}}{1\text{ min}}

So together, both pipes pump out

\dfrac{150+75\text{ L}}{1\text{ min}}=\dfrac{225\text{ L}}{1\text{ min}}=\dfrac{7200\text{ L}}{32\text{ min}}

That is, with both pipes filling the tank, it should take 32 minutes total.

You might be interested in
The spinner shown is spun 300 times.
Ann [662]

Answer:

A) 60

B) 72/300

C) 150

Step-by-step explanation:

A) P(green) = ⅕

⅕ × 300 = 60

B) purple: 72

45+37+52+94+72 = 300

Therefore, 72/300

C) 1000 × (45/300)

150

8 0
3 years ago
I really need help with this geometry on number 7 like help please!!
vredina [299]

Solution: 137 / 2 = 68.5

LMP is 11 degress more so 68.5 + 11 = 79.5

NMP is 11 degrees less so 68.5 - 11 = 57.5


3 0
3 years ago
A rectangle has a perimeter of 6 feet.
pickupchik [31]
The answer is “A” and C
4 0
3 years ago
Read 2 more answers
Which number sentence is an example of the identity property of addition?
Vilka [71]

Answer:

the top one

because identity of addition is adding 0

6 0
3 years ago
What is the number between 100 and 200 and divisible by three and five and not divisible by 4
eimsori [14]
195 is between 100-200 and
195/5=39
195/3=65
But 195/4 is not a whole number the answer would be 48.75

So the number is 195. :)
6 0
3 years ago
Other questions:
  • NEED HELP PLEASE!!!!!! Jeremy surveyed students in his class about their spending habits in the school cafeteria. He used the da
    14·2 answers
  • What is 12-(3-1/2)? I NEED ASAP!! THANK YOU
    10·2 answers
  • Mr. Scott had $90 to spend at the hockey game. He spent 31/45 on his ticket. Then he spent 3/7 of his remaining money at the con
    15·1 answer
  • the length of a rectangle is 5 minutes longer than its with if the perimeter of the rectangle must be at least 34 units what are
    14·1 answer
  • How do I do this?????
    13·2 answers
  • 8kg ham costs $12/kg. find the cost per pound.
    7·1 answer
  • If a+b=10 and a×b =3 determine the value of a^4+b^4​
    11·1 answer
  • PLEASE HELP DUE NOW Pentagon A'B'C'D' E' is the image of
    14·2 answers
  • The equations y = 2x - 5 and y = 13.x
    6·1 answer
  • ONLY ANSWER IF YOU KNOW HOW TO DO THIS.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!