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Marina CMI [18]
3 years ago
5

Solve b=y-my for y.

Mathematics
1 answer:
Mrrafil [7]3 years ago
8 0

Answer:

y = \frac{b}{1-m}

Step-by-step explanation:

In order to get <em>y</em> by itself, we need to pull <em>y</em> out of 1 and <em>m </em>on the right side.

b = y(1 - m) since y(1 - m) is the same as y - my.

Once we have pulled <em>y</em> out of 1 and m, we can divide both sides by 1 - m

\frac{b}{1 - m} = \frac{y(1 - m)}{1 - m}

We can cancel out the 1 - m on the right side since (1 - m) / (1 - m) = 1

Finally we get our answer:

\frac{b}{1-m} = y

This is the same as y = \frac{b}{1-m}

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A mixture of compounds X and Y in a 0.100-cm cell had an absorbance of 0.215 at 272 nm and 0.191 at 327 nm. Find [X] and [Y] in
Oksi-84 [34.3K]

Answer: The concentration of X is 7.13582\times 10^{-6} and the concentration of Y is 2.53159\times 10^{-5}.

Step-by-step explanation:

Since we have given that

At 272 nm, absorbance = 0.215

At 327 nm, absorbance = 0.191

As we have given that

                               Compound X             Compound Y

272                               16400                            3870

327                                3990                             6420

So, our equations becomes

16400C_1+3870c_2=0.215\\\\3990C_1+6420C_2=0.191

By solving these two equations, we get that

C_1=7.13582\times 10^{-6}\\\\C_2=2.53159\times 10^{-5}

Hence, the concentration of X is 7.13582\times 10^{-6} and the concentration of Y is 2.53159\times 10^{-5}.

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4 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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multiply 0.15 and 205,000 together

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Step-by-step explanation:

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