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Use Gaussian elimination to solve. 1 1 The Burkes pay their babysitter $5 per hour before 11 P. M. and $7. 50 after 11 PM

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Use Gaussian elimination to solve. 1 1 The Burkes pay their babysitter $5 per hour before 11 P. M. and $7. 50 after 11 PM One evening \"they went out for 6 hr I and paid the sitter $42. 50. What time did they come home? i "k E) '. They came home at D AM

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