document.write( "Question 6211: Please solve this word problems for me. I need the algebra equation along with the answer, please.\r
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document.write( "Mardi received an inheritance of $60,000. She invested part at 8% and deposited the remainder in tax-free bonds at 7%. Her total annual income from the investment was $4700. Find the amount invested at 8%.\r
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document.write( "thanks
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Algebra.Com's Answer #3297 by Earlsdon(6294) ![]() You can put this solution on YOUR website! Let x = the amount Mardi invested at 8% and $60,000 - x = the amount invested in the tax-free bonds at 7%.\r \n" ); document.write( "\n" ); document.write( "The interest received from the 8% investment is: 0.08x \n" ); document.write( "The interest received from the tax-free bonds is 0.07($60,000 - x)\r \n" ); document.write( "\n" ); document.write( "The total interest is: \n" ); document.write( " 0.08x + 0.07($60,000 - x) = $4,700 Simplify and solve for x. \n" ); document.write( "0.08x + $4,200 - 0.07x = $4,700 \n" ); document.write( "0.01x + $4,200 = $4,700 Subtract $4,200 from both sides. \n" ); document.write( "0.01x = $500 Divide both sides by 0.01 \n" ); document.write( "x = $50,000 The amount invested at 8% \n" ); document.write( " |