document.write( "Question 367286: A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 36 marbles in it. At least how many green marbles does it have? \n" ); document.write( "
Algebra.Com's Answer #261869 by robertb(5830)\"\" \"About 
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From the given, B = 2G. Also, \"B%2BG%3E=36\".
\n" ); document.write( "Substituting the equation into the inequality, we get
\n" ); document.write( "\"2G+%2B+G%3E=36\",
\n" ); document.write( "\"3G%3E=36\",
\n" ); document.write( "\"G%3E=12\".
\n" ); document.write( "Therefore the bag has at least 12 green marbles.
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