document.write( "Question 473685: If a/b=6/7 and a/c=2/5,what is the value of 3b+c in terms of a?
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document.write( "(A)12a
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document.write( "(B)9a
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document.write( "(C)8a
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document.write( "(D)6a
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document.write( "(E)4a\r
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document.write( "Thank you so much! \n" );
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Algebra.Com's Answer #324885 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If a/b=6/7 and a/c=2/5,what is the value of 3b+c in terms of a? \n" ); document.write( "------------ \n" ); document.write( "a/b=6/7 \n" ); document.write( "7a = 6b \n" ); document.write( "b = 7a/6 \n" ); document.write( "---------- \n" ); document.write( "a/c=2/5 \n" ); document.write( "5a = 2c \n" ); document.write( "c = 5a/2 \n" ); document.write( "------ \n" ); document.write( "3b + c = 3(7a/6) + 5a/2 \n" ); document.write( "= 7a/2 + 5a/2 \n" ); document.write( "= 6a \n" ); document.write( " \n" ); document.write( " |