math
posted by Britney .
The quantity demanded each month of the Sicard wristwatch is related to the unit price given by the equation below, where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how many watches must be sold? (Round your answer to the nearest whole number.)
P=41/0.01X^2+1 (0(less than or equal to)x(less than or equal to)20)
? watches

revenue = quantity * price
r(x) = x*p(x)
= 41x/(0.01x^2+1)
dr/dx = (41.41x^2)/(.01x^2+1)^2
since the denominator is never 0,
max revenue occurs where
(41.41x^2) = 0
x = 10 
that wasn't right

sorry  can you show me my mistake?

idk...it jus said that it was wrong....but when i worked it out i got the same answer as you.
Respond to this Question
Similar Questions

math
The quantity demanded each month of the Sicard wristwatch is related to the unit price given by the equation below, where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how many watches … 
Calculus
The management of the Titan Tire Company has determined that the quantity demanded x of their Super Titan tires/week is related to the unit price p by the relation P=132x^2 where p is measured in dollars and x is measured in units … 
Calculus
The quantity demanded each month of the Sicard wristwatch is related to the unit price given by the equation below, where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how many watches … 
*math (4)
The demand function for a certain brand of CD is given by p = −0.01x^2 − 0.2x + 12 where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. The supply function is given … 
!math (4)
The demand function for a certain brand of CD is given by p = −0.01x^2 − 0.2x + 12 where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. The supply function is given … 
!math (4)
The demand function for a certain brand of CD is given by p = −0.01x^2 − 0.2x + 12 where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. The supply function is given … 
MATH EMERGENCY
The demand function for a certain brand of CD is given by p = −0.01x^2 − 0.2x + 12 where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. The supply function is given … 
math
The demand function for the Sicard wristwatch is given by the following function where d(x) (measured in units of a thousand) is the quantity demanded per week and x is the unit price in dollars. d(x) = 50 0.01x2 + 1 (0 ≤ x ≤ … 
Brief Calculus
The demand function for a certain brand of CD is given by p = −0.01x2 − 0.2x + 12 where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. The supply function is given … 
Business Math
2.) Maximizing revenue: The quantity demanded each month of the Sicard wristwatch is related to the unit price by the equation p=50/0.01x^2 + 1 (0 < or = x < or = 20) where p is measured in dollars and x is measured in units …