Mathematics and Society - OS X Lion Server

(1) Farmers in the U.S. have been doing an outstanding job. In 1930 each farmer producedenough food for 10 others. In 1970, each farmer produced enough for 47 others.What percent of the 1930 figure was the 1970 figure?The average consumption of meats and2)Pounds % of totalfish in the U.S. is given to theBeef and mutton 120Poultry 50Pork 67Fish 13Totalcce"ecleft. Change each amount into apercent of the total. Is the averageabout like your eating habits?3) The average lower-budget 4-person family spent $2440 for food in 1973. In 1974,they spent $2730. What percent increase was that over the 1973 cost?4) To the right are given the averageamounts spent on some (not all) ofthe items bought in grocery stores,If the total bill was $20.00, whatamount, to the nearest cent, wasspent on each of the items?5) Add up your family's food bills fora week for each item in the list.See if your family spends about thesame percents as the average familyon the items on the chart.Item % of total Average costMeat ', •• , ., C 22.3Produce 11.0Dairy 7.1(inc1. eggs)Canned goods 5.8Frozen foods 5.2Bakery 3.8Candy, gum, 2.5cookiesSoft drinks 2.2Cereal 1.2Sugar 0.8( ,6) It is estimated that to keep up with the world population, food production willhave to increase by 20% to 35% eachyear. To the right are the figuresMILLIONS OF METRIC TONNESfor 1972 and 1973 for four important 1972 1973 % increasefood items. Is the food production Wheat 347 376keeping up with the population? Rice 294 322Corn 304 311Meat 88.1 88.2(210Data from Statistical Abstract ofthe United States 1975