2. Economics
3. q 19 1p 2ps where p is...

# Question: q 19 1p 2ps where p is...

###### Question details

Q = 19 - 1P + 2PS

where P is the price of the product and

Ps the price of a substitute good.

The price of the substitute good is ​$2.00. Suppose P=​$0.90

The price elasticity of demand is?

Please walk me through the quantity calculation as well, I'm struggling to get the right answer. Thank you!