Completar Frases 195-testVersión en línea 195-test por Farhad Key 1 efficiency influence means in proportionally part income cost as superior replaced improving keep recently buy nearly average months trip Before the 20th century the horse provided day to day transportation in the United States . Trains were used only for long - distance transportation . Today the car is the most popular of transportation in all of the United States . It has completely the horse as a means of everyday transportation . Americans use their car for 90 percent of all personal . Most Americans are able to cars . The average price of a made car was , $ 2500 in 1950 , $2740 in 1960 and up to $4750 1975 . During this period American car manufacturers set about their products and work . As a result , the yearly income of the family increased from 1950 to 1975 faster than the price of cars . For this reason purchasing a new car takes a smaller of a family's total earnings today . In 1951 it took 8 . 1 months of an average family's to buy a new car . In 1962 a new car 8 . 3 of a family's annual earnings . By 1975 it only took 4 . 75 income . In addition , the 1975 cars were technically to models from previous years . The of the automobile extends throughout the economy the car is so important to Americans . Americans spend more money to their cars running than on any other item .
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