document.write( "Question 990125: The ratio of red jelly beans to yellow jelly beans in a dish is 3:4. If Greg eats 3 red jelly beans and 6 yellow ones,the ratio is 4:5. How many yellow jelly brans were orginally in the dish?
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Algebra.Com's Answer #610208 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "The ratio of red jelly beans \"r\" to yellow jelly beans \"y\" in a dish is \"3%3A4\". \r
\n" ); document.write( "\n" ); document.write( "\"r%2Fy=3%2F4\"....solve for \"r\"
\n" ); document.write( "\"r=3y%2F4\"\r
\n" ); document.write( "\n" ); document.write( "If Greg eats \"3\" red jelly beans and \"6\" yellow ones,the ratio is \"4%3A5\". \r
\n" ); document.write( "\n" ); document.write( "\"%28r-3%29%2F%28y-6%29=4%2F5\".......substitute \"3y%2F4\" for \"r\"\r
\n" ); document.write( "\n" ); document.write( "\"%283y%2F4-3%29%2F%28y-6%29=4%2F5\".....cross multiply\r
\n" ); document.write( "\n" ); document.write( "\"5%283y%2F4-3%29=4%28y-6%29\"\r
\n" ); document.write( "\n" ); document.write( "\"15y%2F4-15=4y-24\"\r
\n" ); document.write( "\n" ); document.write( "\"15y%2F4-4y=15-24\"\r
\n" ); document.write( "\n" ); document.write( "\"15y%2F4-16y%2F4=15-24\"\r
\n" ); document.write( "\n" ); document.write( "\"-y%2F4=-9\"\r
\n" ); document.write( "\n" ); document.write( "\"-y=-9%2A4\"\r
\n" ); document.write( "\n" ); document.write( "\"-y=+-36\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28y=+36%29\"=>yellow jelly beans were originally in the dish\r
\n" ); document.write( "\n" ); document.write( "go to \"r=3y%2F4\", substitute \"36\" for \"y\" \r
\n" ); document.write( "\n" ); document.write( " \"r=%283%2A36%29%2F4\"\r
\n" ); document.write( "\n" ); document.write( " \"r=%283%2Across%2836%299%29%2Fcross%284%291\"\r
\n" ); document.write( "\n" ); document.write( " \"r=3%2A9\"\r
\n" ); document.write( "\n" ); document.write( " \"highlight%28r=27%29\"=> red jelly beans were originally in the dish\r
\n" ); document.write( "\n" ); document.write( "check:
\n" ); document.write( "\"r%2Fy=3%2F4\"
\n" ); document.write( "\"27%2F36=3%2F4\"
\n" ); document.write( "\"27%2A4=3%2A36\"
\n" ); document.write( "\"108=108\"\r
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\n" ); document.write( "\n" ); document.write( "\"%28r-3%29%2F%28y-6%29=4%2F5\"
\n" ); document.write( "\"%2827-3%29%2F%2836-6%29=4%2F5\"
\n" ); document.write( "\"24%2F30=4%2F5\"\r
\n" ); document.write( "\n" ); document.write( "\"24%2A5=4%2A30\"\r
\n" ); document.write( "\n" ); document.write( "\"120=120\"\r
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