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3 years ago

8

Let's say that your sibling babysat your neighbor for 1 hour and earned $12, and on another night you babysat the same neighbor

for 2 hours and
earned $20. Would that be fair? Why or why not?

1 answer:

irinina [24]3 years ago

3 0

Answer:

uy would ve usjebbvdhbxjejkeke

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3 years ago

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Answer:

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Step-by-step explanation:

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you can do linear combination between the rows:

2nd row=R2-3R1 and 3th row=R3-2R1

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$\left[\begin{array}{ccc|c}1&0&0&-4/5 \\0&1&0&18/5 \\0&0&1&7/5\end{array}\right]$

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3 years ago