SOLUTION: Aki's Bicycle Design has determined that when x hundred bicyles are built, the average cost per bicycle is given by {{{C(x)=0.2x^2-0.4x+2.346}}}, where C(x) is in hundreds of dolla

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Aki's Bicycle Design has determined that when x hundred bicyles are built, the average cost per bicycle is given by {{{C(x)=0.2x^2-0.4x+2.346}}}, where C(x) is in hundreds of dolla      Log On


   

Question 622265: Aki's Bicycle Design has determined that when x hundred bicyles are built, the average cost per bicycle is given by C%28x%29=0.2x%5E2-0.4x%2B2.346, where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?
Answer by matineesuxxx(27) About Me  (Show Source):
You can put this solution on YOUR website!
just use the quadratic equation to determine the zeros, and the number you want is the larger of the two zeros. say you get one zero of x=0 and another is x=20 then the number you want is 20
so
x+=+%280.4+%2B-+sqrt%28+0.4%5E2-4%2A0.2%2A2.346+%29%29%2F%282%2A0.2%29+