document.write( "Question 793786: Trying to help son by learning myself.\r
\n" ); document.write( "\n" ); document.write( "How many Liters of OJ worth $1.80 should be mixed with 2.4L of lemonade worth 1.15 to produce punch worth 1.54\r
\n" ); document.write( "\n" ); document.write( "Thank you
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Algebra.Com's Answer #480454 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"+x+\" = liters of $1.80 / liter OJ needed
\n" ); document.write( "\"+1.8x+\" = the cost of \"++x+\" liters of $1.80 / liter OJ
\n" ); document.write( "\"+2.4%2A1.15+=+2.76+\" = the cost of 2.4 liters of $1.15 / liter OJ
\n" ); document.write( "-----------------------
\n" ); document.write( "\"+%28+1.8x+%2B+2.76+%29+%2F+%28+x+%2B+2.4+%29+=+1.54+\"
\n" ); document.write( "This is just saying:
\n" ); document.write( "( cost / liter ) = ( cost / liter )
\n" ); document.write( "\"+1.8x+%2B+2.76+=+1.54%2A%28+x+%2B+2.4+%29+\"
\n" ); document.write( "\"+1.8x+%2B+2.76+=+1.54x+%2B+3.696+\"
\n" ); document.write( "\"+1.8x+-+1.54x+=+3.696+-+2.76+\"
\n" ); document.write( "\"+.26x+=+.936+\"
\n" ); document.write( "\"+x+=+3.6+\"
\n" ); document.write( "3.6 liters of $1.80 / liter OJ are needed
\n" ); document.write( "-------------
\n" ); document.write( "check:
\n" ); document.write( "\"+%28+1.8x+%2B+2.76+%29+%2F+%28+x+%2B+2.4+%29+=+1.54+\"
\n" ); document.write( "\"+%28+1.8%2A3.6+%2B+2.76+%29+%2F+%28+3.6+%2B+2.4+%29+=+1.54+\"
\n" ); document.write( "\"+%28+6.48+%2B+2.76+%29+%2F+6+=+1.54+\"
\n" ); document.write( "\"+9.24+=+6%2A1.54+\"
\n" ); document.write( "\"+9.24+=+9.24+\"
\n" ); document.write( "OK
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