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kondaur [170]
3 years ago
8

Determine the equation of the inverse of y = 7x + 2

Mathematics
2 answers:
lukranit [14]3 years ago
7 0

Answer:

x=7y+2

Step-by-step explanation:

switch the letters

horsena [70]3 years ago
5 0

Answer: y=(x-2)/7

Step-by-step explanation:

To find the inverse of the equation, you want to replace all the x with y and all the y with x. Our equation would be:

x=7y+2

Now that we have our equation, we can solve for y.

x-2=7y

y=(x-2)/7

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Answer:

<em>Worker B needs 9 days to finish the rest of the work</em>

Step-by-step explanation:

<u>Proportions</u>

Worker A finishes a project on his own in 12 days and worker B does the same in 16 days.

Worker A does 1/12 of the project in one day and worker B does 1/16 of the project in one day. When working together, they do

\frac{1}{12}+\frac{1}{16}=\frac{7}{48}

After 3 days they have completed:

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1-\frac{7}{16}=\frac{9}{16}

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\displaystyle \frac{\frac{9}{16}}{\frac{1}{16}}=9

days to complete the project.

Worker B needs 9 days to finish the rest of the work

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Answer:

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