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14 votes
14 votes
A homeowner is comparing the cost of hiring twodifferent plumbers. The cost includes a one-timetravel charge of $75 and $100. The cost per hour isshown in the table below.HoursPlumber APlumber B0$75$1001$100$1202$125$1403$150$160

User Tualatrix Chou
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1 Answer

13 votes
13 votes

In this problem we can see that bout of the plumbers increase their cost, so we can calculate how much each plumbes charge per hour so:

For plumber A:


100-75=25

Plumber A charge 25 per hour

For plumber B:


120-100=20

Plumber B charge 20 per hour so the equation will be:


\begin{gathered} y-25x=75 \\ y-20x=100 \end{gathered}

So is option A

User Idalmy
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