jmc

Question

Juan organizes the stamps in his collection by country and by the decade in which they were issued. The prices he paid for them at a stamp shop were: Brazil and France, 6 cents each, Peru 4 cents each, and Spain 5 cents each. (Brazil and Peru are South American countries and France and Spain are in Europe.) FIGURE The average price of his '70s stamps is closest to

Accepted Answer

The price of all the stamps in the '70s together over the total number of stamps is equal to the average price. (12)(0.06)+(12)(0.06)+(6)(0.04)+(13)(0.05)12+12+6+13 = 0.72+0.72+0.24+0.6543 = 2.3343 5.5 cents