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brilliants [131]
2 years ago
11

A train travels at a speed of 140km per hour. How many kilometers does it travel in:

Mathematics
1 answer:
MrRa [10]2 years ago
8 0

Answer:

140kilo in 1hr and 280kilo in 2hr and 420kilo in 3hr and 28kilo in 20 min.

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Answer:

A= 27500 seats, B= 14200 seats, C= 13300 seats

Step-by-step explanation:

a=b+c

a+b+c=55000 seats

30a+24b+18c=1405200 dollars

substitue a for b+c

b+c+b+c=55000

30(b+c)+24b+18c=1405200

seats 2b+2c=55000 --> divide by 2 on both sides b+c=27500 --> c=27500-b

dollars 30b+30c+24b+18c=1405200 --> 54b+48c=1405200 divide by 6 --> 9b+8c=234200

substitute c for 13750-b

9b+8(27500-b)=234200

9b+220000-8b=234,200

b=14,200 seats

c=27500-b=27500-14200=13300 seats

a=55000-b-c=55000-27500=27500 seats

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(5^-2)= (1/5^2)... (1/25) now cube that so it will be 1/15625. Hope that helps
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245 500 1,010 2,030<br> The sequence above can be expressed
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