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Ray Of Light [21]
2 years ago
14

Simplify the exspresion below 3(7.1y + 4x)

Mathematics
1 answer:
givi [52]2 years ago
8 0

Answer:

21.3y + 12x

Step-by-step explanation:

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Let a be an irrational number. Is 1/a rational or irrational
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2 years ago
3 L of water of density 1 gram per centimetre cubed is added to 12litres of alcohol of density of 0.8 gram per centimetre cubed,
Natasha2012 [34]

Answer:

84%

Step-by-step explanation:

each liter is 1000 cubic centimetre, so you have a total density of 3000, but instead think of 3 liters being 100% density and think of alcohol as 80% density, there are 4 times at much 80% than 100% liquid.

with 3 liters of alcohol, 3 liters of water is now 90% density or 0.9 gram per centimetre. add another 3 liters and it is 2/3, so the grams per centimetre would be 8.66667 or 8 2/3's

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