Posted by **Alison** on Wednesday, November 2, 2011 at 12:42am.

1) A price p (in dollars) and demand x for a product are related by

2x^2+6xp+50p^2=10600.

If the price is increasing at a rate of 4 dollars per month when the price is 30 dollars, find the rate of change of the demand.

2)

a) The price (in dollars) p and the quantity demanded q are related by the equation: p^2+2q^2=1100.

If R is revenue, dR/dt can be expressed by the following equation: dR/dt=A dp/dt,

where A is a function of just q.

b)Find dR/dt when q=20 and dp/dt=4.

Thanks in advance!

## Answer this Question

## Related Questions

- CALCULUS!!!(revised) please help - A price (in dollars) and demand for a product...
- CALCULUS!!! - A price (in dollars) and demand for a product are related by If ...
- calc - On January 1, 2013, at a price of x dollars, the demand for a certain ...
- math - The demand function for a certain commodity is approximated by: p = 100e-...
- math - The sunshine bakery sells pies at a fixed price o p dollars per pie. The ...
- Calculus - A company is increasing production at the rate of 25 units per day. ...
- maths, functions - The demand in units per week for a given product as a ...
- Algebra - rate of change help - The price of products may increase due to ...
- calc - A new software company wants to start selling DVDs with their product. ...
- calculus - (1 pt) A new software company wants to start selling DVDs with their ...

More Related Questions