document.write( "Question 263931: Please help. I am so lost I have to pass this final. I have a few questions.\r
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document.write( "1. Graph on a number line where x is a real number. -5
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document.write( "2. Solve by elimination method.
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document.write( " 4x + 5y= 5
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document.write( " 8x + 10y= 10
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document.write( " a. The solution is _____
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document.write( " b. There are infinitely many solutions.
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document.write( " c. There is no solution. \r
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document.write( "3. Solve Using the multiplication principle.
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document.write( " -6x > 1/3
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document.write( " The solution set is {x|x_____ ______}\r
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document.write( "4. The equation y= -1777x + 27,153 can be used to predict the number y of gun deaths in the United Steates x years after 2000, that is, x=0 corresponds to 2000, x=2 corresponds to 2002, x=6 corresponds to 2006, and so on. Predict the number of gun deaths in 2006 and 2008. In what year will the number of gun deaths be 9383?\r
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document.write( " The predicted gun deaths in 2006 will be ________?
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document.write( " The predicted gun deaths in 2008 will be ________?
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document.write( " The predicted number of gun deaths will be 9383 in the year _____?\r
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document.write( "7. Solve using the multiplication principle. Don't forget to perform a checkl
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document.write( " -1/6x = -9/10\r
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document.write( "This is all for now I thank you all in advance.\r
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document.write( "Deborah \r
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Algebra.Com's Answer #194427 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1. Graph on a number line where x is a real number. -5 \n" ); document.write( "Ans: Correct \n" ); document.write( "----------------------------\r \n" ); document.write( "\n" ); document.write( "2. Solve by elimination method. \n" ); document.write( " 4x + 5y= 5 \n" ); document.write( " 8x + 10y= 10 \n" ); document.write( "----- \n" ); document.write( "Multiply thru the 1st equation by 2 so the system becomes: \n" ); document.write( "8x + 10y = 10 \n" ); document.write( "8x + 10y = 10 \n" ); document.write( "-- \n" ); document.write( "Subtract and you get 0 = 0 \n" ); document.write( "----------- \n" ); document.write( "That means the two eqations are the same. \n" ); document.write( "Every point on the line 4x+5y=5 is a solution. \n" ); document.write( " a. The solution is (x,(-4/5)x+1)_____ \n" ); document.write( " b. There are infinitely many solutions. \n" ); document.write( " c. There is no solution. \n" ); document.write( "Ans: b \n" ); document.write( "---------------------- \r \n" ); document.write( "\n" ); document.write( "3. Solve Using the multiplication principle. \n" ); document.write( " -6x > 1/3 \n" ); document.write( "Multiply both sides by (-1/6) and remember to reverse the inequality sign. \n" ); document.write( "(-1/6)(-6x) > (-1/6)(1/3) \n" ); document.write( "x < (-1/18) \n" ); document.write( " The solution set is {x|x< (-1/18}) \n" ); document.write( "==========================================\r \n" ); document.write( "\n" ); document.write( "4. The equation y= -1777x + 27,153 can be used to predict the number y of gun deaths in the United Steates x years after 2000, that is, x=0 corresponds to 2000, x=2 corresponds to 2002, x=6 corresponds to 2006, and so on. \n" ); document.write( "Predict the number of gun deaths in 2006 and 2008. In what year will the number of gun deaths be 9383? \n" ); document.write( "d(6) = -1777(6) + 27,153 = 16,491 \n" ); document.write( "d(8) = -1777(8) + 27,153 = 12,937 \n" ); document.write( "--- \n" ); document.write( "9383 = -1777x + 27153 \n" ); document.write( "-1777x = -17770 \n" ); document.write( "x = 10 \n" ); document.write( "Year = 2010 \n" ); document.write( "------------------------------------------------ \n" ); document.write( " The predicted gun deaths in 2006 will be ________? \n" ); document.write( " The predicted gun deaths in 2008 will be ________? \n" ); document.write( " The predicted number of gun deaths will be 9383 in the year _____?\r \n" ); document.write( "\n" ); document.write( "7. Solve using the multiplication principle. Don't forget to perform a checkl \n" ); document.write( " -1/6x = -9/10 \n" ); document.write( "(-6)(-1/6)x = (-6)(-9/10) \n" ); document.write( "x = 54/10 \n" ); document.write( "x = 27/5 \n" ); document.write( "Checking: \n" ); document.write( "(-1/6)(27/5) = (-9/10) \n" ); document.write( "(-27/30) = (-9/10) \n" ); document.write( "(-9/10) = (-9/10) \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " |