price-demand function is this: = 200 - x/50 now the revenue equals (200 - x/50)x now i have a problem with the multiplication of x. of course, it is 200x, but then? 200x - (x/50 * x ??) how can i get rid of the fraction?
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Originally Posted by makaveli89 price-demand function is this: = 200 - x/50 now the revenue equals (200 - x/50)x now i have a problem with the multiplication of x. of course, it is 200x, but then? 200x - (x/50 * x ??) how can i get rid of the fraction? It is $\displaystyle 200x - \frac{x^2}{50}$ You could multiply everything by 50 if you wanted to clear the fraction. If we say that the price demand function is f(x): $\displaystyle 50f(x) = 10^4x - x^2 = x(10^4-x)$
cool thx. what will be f'(x)? 200- 2x/50 ??
Originally Posted by makaveli89 cool thx. what will be f'(x)? 200- 2x/50 ?? Yes but normally you'd cancel 2x/50 to x/25
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