SOLUTION: the cost of a plumbers services is given by the formula: c =50+40t. c is the cost in dollars and t is the time worked in hours. how many hours did the plumber work if the cost was
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Question 1027938: the cost of a plumbers services is given by the formula: c =50+40t. c is the cost in dollars and t is the time worked in hours. how many hours did the plumber work if the cost was $330? Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Hi there,
the cost of a plumbers services
is given by the formula: c =50+40t.
c is the cost in dollars and t is
the time worked in hours.
Cost = 50 + 40t
$330 = 50 + 40t
330 - 50 = 40t
t = (330 - 50)/40
t = 7 hours
Hope this helps :-)
