document.write( "Question 810293: A jar contains marbles in the ratio of 11 red to 5 black. If there 230 black marbles, how many red marbles are there?
\n" ); document.write( "Select the correct answer.
\n" ); document.write( " a. 506 red
\n" ); document.write( " b. 501 red
\n" ); document.write( " c. 519 red
\n" ); document.write( " d. 485 red
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Algebra.Com's Answer #488040 by erica65404(394)\"\" \"About 
You can put this solution on YOUR website!
simply make the ratio a fraction 11/5 and make the x reds 230 blacks a fraction and make them equal to each other. make sure the units matvh up. red on top and black on bottom.
\n" ); document.write( "\"11%2F5=x%2F230\"
\n" ); document.write( "cross multiply
\n" ); document.write( "\"2530=5x\"
\n" ); document.write( "\"x=506\"
\n" ); document.write( "the answer is a.506 red.
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