I got -2,2....................
Answer:
22 pi
Step-by-step explanation:
5/10 kilogram per 1/6 minutes = 5/10 * 6 = 30/10 = 3 kilograms/min
3 kilograms/min * 60 min/hour = 180 kilograms/hour
180 kilograms/hour * 24 hours/day = 4320 kilograms/day
4320 kilograms/day * 365.25 days/year = 1,577,880 kilograms/year
The total charges for the first club as a function of the number of rentals (x) are
... f1 = 25 + 2.50x
The total charges for the second club are
... f2 = 3.25x
We want to find x so that f1 < f2.
... f1 < f2
... 25 + 2.50x < 3.25x
.. 25 < 0.75x . . . . . . . . . . subtract 2.50x
... 25/0.75 < x . . . . . . . . . divide by the coefficient of x
... 33 1/3 < x
You must rent 34 videos or more to make the first club more economical.
Answer:
st = 30 or 270
Or, if assume these are line segments on a straight line, then our answer would be: ST = 3
