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OleMash [197]
3 years ago
9

HELP ME PLEASE THIS IS FOR CHORUS

Mathematics
1 answer:
KatRina [158]3 years ago
3 0

Answer:

1. (I'm not sure I'm sorry)

2. Ra

3. Si

4. Major Scale (my guess)

5. Chromatic Scale

6. enharmonic ; flat

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Evaluate the expression 2/5 divided by 1/5 plus 4/5 divided by 1/3
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The answer I got is 4 2/5.

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14 7/10 x 14 7/10 what is the answer as a fraction?
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Uhh help lol<br> 5.3x + y = 28.5 <br> 4.2x + 3.1y = 27.2<br> find x and y
navik [9.2K]

Answer:

x = 5, y = 2

Step-by-step explanation:

First, isolate y in the top equation.

y = -5.3x+28.5

Next, substitute y in the bottom equation.

4.2x + 3.1(-5.3x + 28.5) = 27.2

5.3x + y = 28.5

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4.2x + -16.43x + 88.35 = 27.2

Combine like terms.

-12.23x + 88.35 = 27.2

Isolate x on one side.

-12.23x = -61.15

Isolate x.

x = 5

Substitute x into 5.3x + y = 28.5

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Simplify.

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Isolate y.

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x = 5 \\y = 2

6 0
3 years ago
What is -2<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D" id="TexFormula1" title="\frac{1}{2}" alt="\frac{1}{2}" align=
dolphi86 [110]

well, you already know how to convert from mixed to improper, so let's simply do the division.


\bf -2\frac{1}{2}\div 6\implies -\cfrac{5}{2}\div 6\implies \cfrac{-5}{2}\div \cfrac{6}{1}\implies \cfrac{-5}{2}\cdot \cfrac{1}{6}\implies -\cfrac{5}{12}

7 0
3 years ago
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