document.write( "Question 147659: Hope someone can help me with this.\r
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document.write( "a. An financial advisor invested a total of $6,000, part at 4% annual simple interest and part at 6.5% annual simple interest.
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document.write( "The amount of interest earned for 1 year was $335.00. How much was invested at each rate? Show work. \r
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document.write( "b. Consider the equation 3x2 – 4x + 7 = 0.\r
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document.write( "1.Find the discriminant, b2 – 4ac, and then determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.\r
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document.write( "2. Use the quadratic formula to find the exact solutions of the equation. Show work.\r
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Algebra.Com's Answer #108026 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! a. An financial advisor invested a total of $6,000, part at 4% annual simple interest and part at 6.5% annual simple interest. \n" ); document.write( "Amount EQUATION: x + y = 6000 \n" ); document.write( "-------------------------------- \n" ); document.write( "The amount of interest earned for 1 year was $335.00. How much was invested at each rate? Show work. \n" ); document.write( "Interest EQUATION: 0.04x + 0.065y = 335 \n" ); document.write( "-------------------------------- \n" ); document.write( "Rearrange the equations: \n" ); document.write( "40x + 65y = 335000 \n" ); document.write( "40x + 40y = 40*6000 \n" ); document.write( "------------------ \n" ); document.write( "Subtract 2nd from 1st to get: \n" ); document.write( "25y = 95000 \n" ); document.write( "y = $3800 (Amt. invested at 6.5%) \n" ); document.write( "x = 6000 - 3800 = $2200 (Amt. invested at 4%) \n" ); document.write( "---------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "b. Consider the equation 3x2 – 4x + 7 = 0. \n" ); document.write( "1.Find the discriminant, b2 – 4ac, and then determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist. \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2. Use the quadratic formula to find the exact solutions of the equation. Show work. \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |