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An exterminator charges $80 to visit a home and $35 to spray each room. If the total bill was $395, how many rooms were sprayed? Write an algebraic equation that represents this situation. Then solve it.
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An exterminator charges $80 to visit a home and $35 to spray each room. If the total

bill was $395, how many rooms were sprayed? Write an algebraic equation that
represents this situation. Then solve it.

User Dipak Narigara
by
8.3k points

1 Answer

5 votes
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

User Kamil Witkowski
by
8.0k points
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