1.1.40

40. The following table gives the approximate increase in dollars in the average price of a gallon of gas per

decade since 1950. If the average price of a gallon of gas in 2010 was $2.60, what was the average price of a

gallon of gas in 1950?

Starting Year

1950

1960

1970

1980

1990

2000

10-Year Change

0.03

0.05

0.86

-0.03

0.29

1.12

Table 1.4 Approximate 10-Year Gas Price Increases, 1950-2000 Source:

http://epb.lbl.gov/homepages/Rick

Diamond/docs/lbnl55011-trends.pdf.

Hint: Consider the formula: price 1950 + 6 = price 2010.

Be sure to include units.