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katrin2010 [14]
3 years ago
5

An exterminator charges $80 to visit a home and $35 to spray each room. If the total

Mathematics
1 answer:
mixas84 [53]3 years ago
3 0
Your variable is r for the number of rooms

So your equation is 395= 35*r + 80

First subtract 80 from both sides of the equation

315 = 35r

Next divide 35 from both sides of the equation

And your final answer is 9 rooms in total he sprayed.

Total cost = 35(#ofrooms) + 80

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