document.write( "Question 264607: Hello,\r
\n" ); document.write( "\n" ); document.write( "I am in Algebra 100 at American River College. My instructor gave the class homework on a new chapter and I am totally confused\r
\n" ); document.write( "\n" ); document.write( "My first question is the following: Mardi received an inheritance of $70,000. She invested part at 7% and deposited the remainder in tax free bonds at 12%. Her total annual income from the investments was $5900. Find the amount invested at 7%. Use the formual I=prt.\r
\n" ); document.write( "\n" ); document.write( "I really want to do know how to do it instead of just getting the answer. If you could help that would be great!\r
\n" ); document.write( "\n" ); document.write( "Thank you,
\n" ); document.write( "Mary Ann\r
\n" ); document.write( "\n" ); document.write( "
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Algebra.Com's Answer #194809 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
I=PRT
\n" ); document.write( "5,900=.12X+.07(70,000-X)1
\n" ); document.write( "5,900=.12X+4,900-.07X
\n" ); document.write( "5,900-4,900=.12X-.07X
\n" ); document.write( "1,000=.05X
\n" ); document.write( "X=1,000/.05
\n" ); document.write( "X=20,000 AMOUNT INVESTED @ 12%.
\n" ); document.write( "70,000-20,000=50,000 AMOUNT INVESTED @ 7%.
\n" ); document.write( "PROOF:
\n" ); document.write( "5,900=.12*20,000+.07*50,000
\n" ); document.write( "5,900=2,400+3,500
\n" ); document.write( "5,900=5,900
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