3 years ago

An election charges $30 for a service call plus $75 per hour of service.if he changed $210 how many hours did he work?

Mathematics

2 answers:

andreev551 [17]3 years ago

5 0

2 hours because u add the 30

Goshia [24]3 years ago

4 0

Your answer would be 2 because 75*2 is 150 and 30*2 is 60. Add those together and you get $210

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Mnenie [13.5K]

Answer:

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12. 5.5

Step-by-step explanation:

Use the slope formula:

m = (y2 - y1)/(x2 - x1)

10.

m = (6.24 - 3.27)/(5 - 2) = 2.97/3 = 0.99

11.

m = (240 - 360)/(3 - 1) = -120/2 = -60

12.

m = (8.84 - 6.09)/(7 - 2) = 2.75/5 = 5.5

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