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daser333 [38]
3 years ago
15

Can someone help me with #3? Please and thank you.

Mathematics
2 answers:
irga5000 [103]3 years ago
8 0
The answer is 42 cause you do ( 18*28=12x) wich is 504=12x which equals 42
Dahasolnce [82]3 years ago
7 0
Assuming that this is a proportional question, the answer would be 42.
I hope this helps you.
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Pipe A can fill a tank in 40 minutes, while pipe B takes 60 minutes to fill the same tank.
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Answer:

24 minutes.

Step-by-step explanation:

This question shows up in a great many places in math or physics, so it is a pretty good question to learn how to do.

First you should note that answer will be under 40 minutes.

1/40 + 1/60 = 1/TimeTotal

The common denominator on the left is 120 minutes

3/40*3 + 2/60*2 = 1/timetotal

3/120 + 2/120      = 1/ timetotal

5/120 = 1/time total  Now to use to the key stop

What you do now is you always turn the left side over. You do the same thing to total time.

120/5 = total time

24 = total time

What this means is that if you let both pipes run for 24 minutes, they will fill the tank working together.

4 0
3 years ago
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X = 1
8 0
3 years ago
Describe the change in the winning times from 2006 to 2010​
swat32
Is there any more information by any chance? Like possibly a table or chart or graph?
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3 years ago
Radio signals travel at a rate of 3x10^8 meters per second how many seconds would it take for a radio signal to travel from a sa
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4 0
2 years ago
Read 2 more answers
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