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motikmotik
2 years ago
14

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,

find the density of the mixture.​
Mathematics
1 answer:
Natasha2012 [34]2 years ago
4 0

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

if you add another 3 liters, THEN it is 85%

add 12 liters in total and the final answer 84%

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galina1969 [7]

Answer: x=34

Step-by-step explanation:

1. You subtract 2x from 5x on the other side to get rid of the 2x leaving you with 3x.

2. Then you add 5 to 97 to get rid of the -5, giving you 102 on the opposite side.

3. divide 102 by 3x giving you 34.

5x-5=2x+97

-2x     -2x

3x-5=97                                                                      <u><em>X=102</em></u>

   +5  +5

3x=102

x/3   102/3

4 0
3 years ago
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ivanzaharov [21]
The answer is 322 m/s. hope this helps :)
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3 years ago
please help !! I need the new equation, the vertex, the zeros, the y-intercept, and the maximum or minimum value
Volgvan

Answer:

1.py. zeroes

Step-by-step explanation:

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2 years ago
A counting number is a multiple of 13 and is also divisible by 4 and 6. What is the smallest number that satisfies these conditi
ASHA 777 [7]

Answer:

39

Step-by-step explanation:

39 is a multiple of 13. 13,26,39.

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3 years ago
Simplify the expression <br><br><img src="https://tex.z-dn.net/?f=6%285%20%2B%20t%29%20-%203%28t%20%2B%203%29" id="TexFormula1"
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2 years ago
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