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Alona [7]
1 year ago
11

What is the missing number in this sequence: 1 , 3, ___ , 10 , 15 , 21 ?

Mathematics
1 answer:
Arte-miy333 [17]1 year ago
3 0

Answer:

6

Step-by-step explanation:

the sequence increases by 1,2,3,4,5,6 each time, thus it is 6

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Answer:

<em>The ferry can travel \frac{7}{18} of the distance between the two ports in one hour.</em>

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A ferry traveled \frac{1}{6} of the distance between two ports in \frac{3}{7} hour.

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\frac{\frac{1}{6}}{\frac{3}{7}} =\frac{x}{1} \\ \\ x=\frac{1}{6}\times \frac{7}{3}= \frac{7}{18}

Thus, the ferry can travel \frac{7}{18} of the distance between the two ports in one hour.

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