Answer:
140$
Step-by-step explanation:
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Answer:
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Answer:
Auxiliary pump should be started at 6:36 PM
Step-by-step explanation:
Let the volume of oil tanker be V.
An oil tanker can be emptied by the main pump in 5 hours,
An auxiliary pump can empty the tanker in 12 hours,
We need to find when should the auxiliary pump be started so that the tanker is emptied by 9 PM if the main pump is started at 5 PM.
Difference in times = 4 hours
That is main pump works for 4 hours and let auxiliary pump works for t hours.
We have
So auxiliary pump works for 2.4 hours,
It should be started at 9 - 2.4 = 6.6 PM = 6:36 PM
Auxiliary pump should be started at 6:36 PM
Hello! The answer is
B ) (3, 2), (6, 4), (9, 6)
C ) (2, 2), (4, 4), (6, 6)
E ) (0, 0), (1, 2), (2, 4), (4, 8)
Answer:
Step-by-step explanation:
<em>Look at the picture.</em>
We have the triangles 45° - 45° - 90°. The sides are in ratio 1 : 1 : √2
(<em>look at the second picture</em>).
Therefore we have the equations:
and
Solve:
<em>multiply both sides by √2</em>
<em>divide both sides by 2</em>
<em>multiply both sides by √2</em>
<em>divide both sides by 2</em>
The side length of square is
The area of a square: