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20-08-2018
Mathematics

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Pete’s Electric charges $75 plus $30 per hour of work while Greg’s Electric charges $45 plus $45 per hour. How many hours must each electrician work for them to charge the same amount?

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mmcuebas mmcuebas

20-08-2018

h: hours
45h + 45 = 30h + 75
15h + 45 = 75
15h = 30
h = 2 hours

45 ( 2 ) + 45 = 30 ( 2 ) + 75
90 + 45 = 60 + 75
135 = 135

Therefore the awnser is 2 hours.

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