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Yuri [45]
3 years ago
13

A mechanic charges $330 for 6 hours of labor.

Mathematics
1 answer:
kompoz [17]3 years ago
5 0
For 6 hours charges $330

for 9 hours charges x
---------------------------------

 x = 9*330/6 = 495 so choice C. is right 
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Step-by-step explanation:

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d) Multiply the first equation by −4 to get −8x − 24y = −48.

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So, Option A and B are correct.

Keywords: Solve System of equations

Learn more about solving system of equations at:

  • brainly.com/question/6075514
  • brainly.com/question/2115716
  • brainly.com/question/13168205

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