document.write( "Question 1146217: Amanda borrowed $6000 from two sources her parents and a credit union her parents charge 3% simple interest and the credit union charged 8% simple interest if after one year Amanda paid $255 in interest how much did she borrow from her parents and how much did she borrow from the credit union \n" ); document.write( "
Algebra.Com's Answer #767518 by ankor@dixie-net.com(22740)\"\" \"About 
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Amanda borrowed $6000 from two sources her parents and a credit union her parents charge 3% simple interest and the credit union charged 8% simple interest
\n" ); document.write( " if after one year Amanda paid $255 in interest how much did she borrow from her parents and how much did she borrow from the credit union
\n" ); document.write( ":
\n" ); document.write( "Let x = amt borrow at the credit union at 8%
\n" ); document.write( "the total borrowed is $6000, therefore
\n" ); document.write( "(6000-x) = amt borrowed from parents at 3%
\n" ); document.write( ":
\n" ); document.write( "Credit union interest + parents interest = $255
\n" ); document.write( ".08x + .03(6000-x) = 255
\n" ); document.write( ".08x + 180 - .03x = 255
\n" ); document.write( ".08x - .03x = 255 - 180
\n" ); document.write( ".05x = 75
\n" ); document.write( "x = 75/.05
\n" ); document.write( "x = $1500 borrowed from the credit union
\n" ); document.write( "then
\n" ); document.write( "6000 - 1500 = $4500 borrowed from parents
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "See if this checks out. Find the actual interest from each
\n" ); document.write( ".08(1500) = 120
\n" ); document.write( ".03(4500) = 135
\n" ); document.write( "---------------
\n" ); document.write( "total int: 255 \n" ); document.write( "
\n" );