Question

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

Answer 1

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