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A plumber charges $50 for every house call and an additional $70 for each hour or work. For one house call yesterday, the plumber earned $435. Witch equation can be solved to find the number of hours the
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A plumber charges $50 for every house call and an

additional $70 for each hour or work. For one house
call yesterday, the plumber earned $435.
Witch equation can be solved to find the number of hours the plumber worked on the house call?

User Lukas Kalinski
by
7.4k points

1 Answer

2 votes
he worked 5.5 hours
50-70x= 435
70x = 385
User MeqDotNet
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6.8k points
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