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Question 103172: Think of a real-life situation that can be translated to a polynomial function and solve the problem.
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! Think of a real-life situation that can be translated to a polynomial function and solve the problem.
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you have to earn at least $3000 this summer, to be able to return to college:
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You found a construction job that will let you take home $120 per day.
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The job site is 50 miles from your home. You must drive 100 mi every day.
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The car you own costs 25 cents a mile to operate (It's an old one).
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You bring your own lunch (using your parents food) so no expense there.
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How many days will you have to work to have $3000 at the end of the summer.
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Let x = number of days worked, f(x) = 3000
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f(x) = 120x - x(.25*100)
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Wages - car expense = required amt
120x - x(.25*100) = 3000
120x - x(25) = 3000
120x - 25x = 3000
95x = 3000
x = 3000/95
x = 31.58 days, so let's say you must work 32 days to reach your goal goal
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Check it using 32 days
120(32) - 32(25) =
3840 - 800 = $3040.00
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Actually this is a real life situation that occurred not too long ago
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