document.write( "Question 111745: hI!
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\n" ); document.write( "\n" ); document.write( "There are two jars each containing red and white marbles.The ratio of red to white marbles is 7:1 in the first jar and 9:1 in The second jar. There are 90 white marbles in the first jar. If the second jar has twice as many red marbles as the first jar how many white marbles are there in the second jar???\r
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Algebra.Com's Answer #81526 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
7:1=x/90 cross multiply
\n" ); document.write( "x=630 red marbles in the first jar.
\n" ); document.write( "2*630=1260 red marbles in the second jar.
\n" ); document.write( "9:1=1260/x
\n" ); document.write( "9x=1260
\n" ); document.write( "x=1260/9
\n" ); document.write( "x=140 number of white marbles in the second jar.\r
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