The national demand and price for a certain type of energy-efficient exhaust fan are related by p = 490 - 5q/7, where

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The national demand and price for a certain type of energy-efficient exhaust fan are related by p = 490 - 5q/7, where p is the price (in dollars) and q is the demand (in thousands), The price and supply of the exhaust fans are related by p - 2q/7, where p is the price ( in dollars) and q is the supply (in thousands) of exhaust fans.
Answer questions a through f below.
a. Find the price for a demand of 161,000 exhaust fans.
b. Find the demand of exhaust fans at a price of $195.
c. Find the supply when the price is $136.

 

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  • 9 years ago
The national demand and price for a certain type of energy-efficient exhaust fan are related by p = 490 - 5q/7, where
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