document.write( "Question 250091: Whoa I need help please?
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document.write( "The equation y=-1777x+27,153 can be used to predict the number y of gun death in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=2 corresponds to 2002, x=4 corresponds to 2004 and so on, predict the number of gun deaths in 2004 and 2007. In what year will the number of gun deaths be 11,160?
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document.write( "2004 ?
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document.write( "2007 ?
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document.write( " and the number of gun deaths will be 11,160 in the year ?
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document.write( "I am totally lost. Thank you \n" );
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Algebra.Com's Answer #182104 by Theo(13342)![]() ![]() You can put this solution on YOUR website! equation is:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = -1777*x + 27153\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = 0 corresponds to the year 2000.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you want to predict the number of gun deaths in 2004 and 2007.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2004 corresponds to x = 4 \n" ); document.write( "2007 corresponds to x = 7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in 2004, the equation becomes y = -1777*4 + 27153 = 20045 \n" ); document.write( "in 2007, the equation becomes y = -1777*7 + 27153 = 14714\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "to solve for what year the total number of gun deaths will be 11160, you need to substitute for y in the equation to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "11160 = -1777*x + 27153 \n" ); document.write( "subtract 27153 from both sides of this equation to get: \n" ); document.write( "11160 - 27153 = -1777*x \n" ); document.write( "combine like terms to get: \n" ); document.write( "-15993 = -1777*x \n" ); document.write( "divide both sides by -1777 to get: \n" ); document.write( "-15993/-1777 = x \n" ); document.write( "solve for x to get: \n" ); document.write( "x = 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the year 2000 + 9 = the year 2009\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your answers are:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "number of gun deaths in 2004 = 20045 \n" ); document.write( "number of gun deaths in 2007 = 14714 \n" ); document.write( "gun deaths will be 11160 in 2009\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |