If the average cost of a house was $50,000 in 1965 and was x in 2005, what was the average increase in home prices per year over this period?
Answers
A) (x+50,000)/40  B) (x-50,000)/40  C) (50,000/40)+x  D) (50,000-x)/40  E) x/40
Average house price in 2005: x   Average house price in 1965: 50,000   2005-1965= 
<gadget id="calculator">2005-1965</gadget>
<output>40</output>
40   Average increase per year: (x-50,000)/40   Answer is (x-50,000)/40
<result>B</result>
If the average cost of a house was $50,000 in 1965 and was x in 2005, what was the average increase in home prices per year over this period?