document.write( "Question 194213: 1.Can you help me with this? ) Let’s assume that the combined population of Anchorage and Tampa was 25,000 in 1955. By 1960 the population of Anchorage had increased by 10% while Tampa had increased by 9%. If the total population increased by 2380 people, then what was the population of each city in 1955.\r
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Algebra.Com's Answer #145790 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! Let’s assume that the combined population of Anchorage and Tampa was 25,000 \n" ); document.write( " in 1955. By 1960 the population of Anchorage had increased by 10% while Tampa \n" ); document.write( " had increased by 9%. If the total population increased by 2380 people, \n" ); document.write( " then what was the population of each city in 1955. \n" ); document.write( ": \n" ); document.write( "Let x = population of Anchorage in 1955 \n" ); document.write( "then \n" ); document.write( "(25000-x) = population of Tampa in 1955 \n" ); document.write( ": \n" ); document.write( "Anchorage increase + Tampa increase = 2380 people \n" ); document.write( ".10x + .09(25000-x) = 2380 \n" ); document.write( ".10x + 2250 - .09x = 2380 \n" ); document.write( ".10x - .09x = 2380 - 2250 \n" ); document.write( ".01x = 130 \n" ); document.write( "x = \n" ); document.write( "x = 13,000 is the pop of Anchorage \n" ); document.write( "and \n" ); document.write( "25000 - 13000 = 12,000 is pop of Tampa \n" ); document.write( "; \n" ); document.write( "; \n" ); document.write( "Check solution: \n" ); document.write( ".10(13000) + .09(12000) = \n" ); document.write( "1300 + 1080 = 2380 \n" ); document.write( " |