Question

Aplumber charges a $75 flat fee for jobs lasting up to an hour and $30 for each hour of labor after the first hour. Which

Answer 1

Answer:-

$\longrightarrow \sf 75+ 30(h-1)$

Solution:-

Given that :-

• job last for h hours
• Cost of job lasting more than 1 hour = $30
• Cost for the first hour = $75

$\leadsto$Remaining hours for which the job will last after first hour= (h-1)

Therefore,

Cost for subsequent hours = 30×(h-1)

= 30(h-1)

Total Cost for job = Cost for 1st hour + Cost for subsequent hours

$\quad\quad\quad\quad\quad\quad\quad\quad\boxed{\sf{= 75+30(h-1)}}$