Kiwidale Dairy is considering purchasing a new ice-cream maker. Two models, Smoothie and Creamy, are available and their information is given below (all costs and profits are in dollars):

	Smoothie	Creamy
First Cost	$20000	$34000
Service Life	14 years	12 years
Annual Profit	$4500	$9000
Annual Operating Cost	$950	$3250
Salvage Value	$2000	$4500

Calculate the present worth of the smoothie machine for one life cycle (no repeated lives), if the interest rate is 10%.