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matrenka [14]
2 years ago
15

an oil tanker can be emptied by the main pump in 5 hours. an auxiliary pump can empty the tanker in 8 hours. if the main pump st

arted at 5 pm, when should the auxiliary pump be started so that the tanker is emptied by 9 pm?
Mathematics
2 answers:
Verizon [17]2 years ago
8 0
1pm is the correct answer
8+1=9
r-ruslan [8.4K]2 years ago
6 0

Answer:

1 pm

Step-by-step explanation:

1 + 8 = 9

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Please help I have no idea how to do this!
Alexus [3.1K]

Answer:

D. <B = 141°

Step-by-step explanation:

The <u>sum of interior angles</u> of a polygon is

(n-2)*180, where n is the number of sides!

Sum of angles for our polygon that has 7 sides must be:

(7-2) *180 = 5*180 = 900

Sum of angles that are in the picture are:

120+129+130+142+90+148+ <B = 759 + <B

<B = 900 -759 = 141°

Check our work:

120°+129°+130°+142°+90°+148°+ 141° = 900°✅

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2 years ago
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tresset_1 [31]

C. x is all real numbers

5 0
3 years ago
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Readme [11.4K]
At the end of the directions, it talks about parallel, perpendicular, or neither. When x=y, the lines are perpendicular and have infinite solutions. When they are parallel, there is no solution. You'll get an answer like 4=5. Neither means there is only one answer, and you will get one x and one y.
7 0
3 years ago
2/3 - 1/5<br>answer pls​
Sedbober [7]
The answer would be 7/15
3 0
2 years ago
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yawa3891 [41]
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7 0
3 years ago
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