I assume the first is plumber A
Cost = 60t , where t is the number of hours
plumber B:
cost = 55t + 40
when are the costs the same? When
60t = 55t+40
solve and you got the value of t
plug it back into one of the equations to get the cost
(no system of equations needed here)
Plumber chargers $60 an hour. Plumber B chargers $40 to visit your home plus $55 for each hour. for hop many hours will the total cost for each plumber be the same? how much will that cost be?
Define your variables:
Write a system of equations:
solve the system of equation using either subitution or elimination
1 answer
1 answer