SOLUTION: C computes the cost inmillions of dollars of implementing a city recycling project when x percent of the citizens participate. C(x)=1.4x/(100-x)
Using this model, approx what is
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Question 113785This question is from textbook Blitzer
: C computes the cost inmillions of dollars of implementing a city recycling project when x percent of the citizens participate. C(x)=1.4x/(100-x)
Using this model, approx what is the cost if 60% of the citiznes participate?
this is what I have - is this correct? C=1.4 times 60 over 100-60, which would be 2.1 million.
I do not know how to write the formula for part b, which is to estimate the percentage of participation that can be expected if 4 million is spent on the project. Set up an equation and solve algebraically, rounding to the nearest whoel percent.
This question is from textbook Blitzer
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
C(x)=1.4x/100-x
Using this model, approx what is the cost if 60% of the citiznes participate?
this is what I have - is this correct? C=1.4 times 60 over 100-60, which would be 2.1 million.
That looks good.
-------------------------
I do not know how to write the formula for part b, which is to estimate the percentage of participation that can be expected if 4 million is spent on the project. Set up an equation and solve algebraically, rounding to the nearest whole percent.
4 = 1.4x/(100-x)
Cross-multiply to get:
400-4x = 1.4x
5.4x = 400
x = 74%
===========================
Cheers,
Stan H.
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