Register
the plumber charges $50 for the first visit plus $8 per hour of work . if the plumbers total bill is $290 how many hours did he work
85.7k views
1 vote
the plumber charges $50 for the first visit plus $8 per hour of work . if the plumbers total bill is $290 how many hours did he work

User Mike
by
8.1k points

1 Answer

4 votes
h is the variable I used for hours worked
290=(8*h)+50 (known 50 dollar fee plus 8$ / hr)
subtract 50 from both sides
240 = 8h
divide both sides by 8
h=30

He worked 30 hours.
User Nsantorello
by
8.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!