The price p (in dollars) and the quantity x sold of a certain product satisfy the demand equation x=-5p+200. How many units are sold at this price?
To find the quantity sold at a certain price, we can substitute the given price into the demand equation and solve for x.
Since x = -5p + 200, we substitute p for the given price:
x = -5(p) + 200
If the price is $40, then:
x = -5(40) + 200
x = -200 + 200
x = 0
Therefore, 0 units are sold at a price of $40.