document.write( "Question 175910: can u please help me on this one:42/y=120/100 \n" ); document.write( "
Algebra.Com's Answer #131015 by Alan3354(69443)\"\" \"About 
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can u please help me on this one:42/y=120/100
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\n" ); document.write( "42/y=120/100
\n" ); document.write( "42/y=12/10
\n" ); document.write( "42/y=6/5
\n" ); document.write( "Multiply by 5y
\n" ); document.write( "42*5 = 6y
\n" ); document.write( "6y = 210
\n" ); document.write( "y = 35
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\n" ); document.write( "A quicker way is to \"cross multiply\"
\n" ); document.write( "42/y=120/100
\n" ); document.write( "42*100 = 120y
\n" ); document.write( "y = 35
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