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Tomtit [17]
3 years ago
11

A sample of an unknown liquid has a volume of 12.0 mL and a mass of 6 g. What is its density?

Mathematics
1 answer:
NemiM [27]3 years ago
6 0
Density = Mass/Volume
Density = 6/12 = 0.5 g/mL or 0.5 kg/L

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Step-by-step explanation:

Let B the cost of the book and let P the cost of the pen.

Then we know:

The book and the pen cost $14:

B + P = $14 } Equation 1  

We also know:  

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B = 2P + $2 } Equation 2  

Now we can substitute the value of B from the equation 2 in the equation 1:

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Answer: The book costs $10 and the pen costs $4✔️

<h3>Verify </h3>

We can substitute these values in equations 1 and 2 and check the results:

B + P = $14 } Equation 1

$10 + $4 = $14 ✔️check!

B = 2P + $2 } Equation 2  

$10 = 2x$4 + $2 = $8 + $2 = $10 ✔️check!

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