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erma4kov [3.2K]
3 years ago
11

a plumber charges $55 for a service call plus $35 per hour. if the plumber’s bill was $160, how many hours was he there?

Mathematics
2 answers:
FromTheMoon [43]3 years ago
8 0
It is three hours. If you go to a calculator, and add 55 + 35 you get $90. So, you keep adding +35 until you get your answer, and how many times you put (+35) is how many hours.
Allushta [10]3 years ago
5 0
He was there for 3 hours cause 3 x 35 = 105 but 105 + 55 = 160
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