SOLUTION: Ok so this one has me totally frustrated. Thank you in advance for your help, you guys are life savers:) If you produce x photo calanders, the average cost per calander is give

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Question 110040This question is from textbook university of Phoenix Elementary and Intermediate Algebra
: Ok so this one has me totally frustrated. Thank you in advance for your help, you guys are life savers:)
If you produce x photo calanders, the average cost per calander is given by
A(x)=-0.4x^2+24x+42
---------------
x
What is you average cost, if you produce twenty-five calanders? This question is from textbook university of Phoenix Elementary and Intermediate Algebra

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
A%28x%29=%28-0.4x%5E2%2B24x%2B42%29%2Fx I assume this is the problem.
A%2825%29=%28-0.4%2A25%5E2%2B24%2A25%2B42%29%2F25
A%2825%29=-0.4%2A25%2B24%2B%2842%2F25%29
A(25)=-10+24+1.68
A(25)=$15.68
Ed