Answer: 149 cartridges will be sold at 20 dollars per cartridge.
Step-by-step explanation:
Given: The projected sales volume of a video game cartridge is given by the function , where <em>s</em> is the number of cartridges sold, in thousands; <em>p</em> is the price per cartridge, in dollars; and <em>a</em> is a constant.
Put s(p)=100000, p= 10, we get
i.e.
Put p=20, we get
Hence, 149 cartridges will be sold at 20 dollars per cartridge.
Answer:
The actual length of the living room is <u>60 square feet</u>.
Step-by-step explanation:
Given:
A blueprint of a house shows a living room that is 15 square inches.
If the blueprints is 1 inch : 4 feet.
Now, to find the actual square foot of the living room space.
Let the actual square foot of the living room be
The length of the room in the blueprint is 15 square inches.
The blueprint of the house is 1 inch : 4 feet.
So, 1 inch is equivalent to 4 feet.
Thus, 15 inches is equivalent to
Now, to use the cross multiplication method to get the actual square foot of the living room:
Therefore, the actual length of the living room is 60 square feet.