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EastWind [94]
3 years ago
15

How can I solve this does anyone knows?

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
7 0
A. C = 17h + 15
b. 83 = 17h + 15 
    -15           - 15  subtract 15 from both sides 
    68 = 17h
    ------------
         17               divide both sides by 17
      4=h  
  They cleaned the house for 4 hours
c. C = 20x
to do this last part, you would put both equations into the calculator under y=, then look at the table to determine when the price is the same. According to the calculator, the price is the same at 5 hours 
Ksju [112]3 years ago
4 0
I’m sorry but I don’t know number 3
1)15+17h
2)4 hours
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