document.write( "Question 162142This question is from textbook additional practice and skills workbook \n" );
document.write( ": a bag contains 8 yellow marbles and 6 blue marbles. what number of yellow marbles can you add to the bag so that the ratio of yellow to blue marbles is 2:1?\r \n" );
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document.write( "we want yellow to be twice as big as blue \n" );
document.write( "since blue is 6 then we want yellow to be 12 \n" );
document.write( "so we must add 4 more yellow \n" );
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