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dexar [7]
2 years ago
11

What is 3(10x + 7) equal to?

Mathematics
2 answers:
user100 [1]2 years ago
6 0
3 times 10x = 30x
7 times 3 = 21
Answer 30x+21

tester [92]2 years ago
3 0
3 (10x+7) is equal to 30x+21
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An urn contains 1 liter of water while a second urn nearby is empty. after 1/2 of the water in the first urn is emptied into the
Volgvan

We are given that there will be (1/2) a litre after the first pouring, so considering two successive pourings (n and (n+1)) with 1/2 litre in each before the nth pouring occurs:

1/2 × (1/n) = 1/(2n)

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(n-1)/2n and (n+1)/2n in each urn after the nth pouring

 

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<span>1/2</span>

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