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rewona [7]
3 years ago
8

A train arrives at the station with 150 passengers on board.2/5 of the passengers get off the train in Seattle,and then 35 passe

ngers board the train.How many passengers are on the train when it leaves the station?
Mathematics
2 answers:
Vladimir [108]3 years ago
5 0
150/5=30
30×2=60
60+35=95
so there are 95 passengers when the train leaves.
Oksi-84 [34.3K]3 years ago
3 0
2/5 of 150 is 60.  So 60 people leave the train leaving 90 people on it. 90 + 35 is 125. The answer should be 125.

Good luck!!
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How many solutions does the equation have, x1 + x2 + x3 = 10 , where x1 , x2, and x3 are non-negative integers?
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Non-negative integers are positive integers or zero.

1. When x_1=0, then there are such possible cases for x_2 and x_3:

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In total 11 solutions for x_1=0.

2. For x_1=1, there are such possible cases for x_2 and x_3:

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In total 10 solutions for x_1=1.

3. This process gives you

  • for x_1=2 - 9 solutions;
  • for x_1=3 - 8 solutions;
  • for x_1=4 - 7 solutions;
  • for x_1=5 - 6 solutions;
  • for x_1=6 - 5 solutions;
  • for x_1=7 - 4 solutions;
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  • for x_1=9 - 2 solutions;
  • for x_1=10 - 1 solution.

4. Add all numbers of solutions:

11+10+9+8+7+6+5+4+3+2+1=66.

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