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Hatshy [7]
3 years ago
13

Which of the following equations is equivalent to ab − 8 = 3b, when solving for b .

Mathematics
2 answers:
anygoal [31]3 years ago
5 0

Answer:

should be b = 8/a-3

Step-by-step explanation:

Varvara68 [4.7K]3 years ago
5 0
It would be B=-8/a-3
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During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by
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Answer:

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Step-by-step explanation:

Given

s = 10|x - 4| + 50

Required

Solve for x when s = 80

Substitute 80 for x

80 = 10|x - 4| + 50

Subtract 50 from both sides

80 - 50= 10|x - 4| + 50 - 50

30= 10|x - 4|

Divide through by 10

\frac{30}{10}= \frac{10|x - 4| }{10}

3= |x - 4|

Reorder

|x - 4| = 3

This can be split into

x - 4 = 3 or x - 4 = -3

Solve for x

x = 4 + 3 or x = 4 - 3

x = 7 or x = 1

Hence:

<em>The numbers of measure of music played are 1 and 7</em>

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Step-by-step explanation:

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a= d-r +c

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