document.write( "Question 1090120: Sorry I don't know which type it is.
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document.write( "Question:
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document.write( "It is given that the ratio of two numbers is 3:7. If 6 is subtracted from both numbers, their ratio will become 1:3. What is the ratio of number if 6 is added to both numbers?
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document.write( "Thank you very much! \n" );
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Algebra.Com's Answer #704518 by htmentor(1343)![]() ![]() You can put this solution on YOUR website! x/y = 3/7 -> 7x = 3y -> y = 7/3x \n" ); document.write( "(x-6)/(y-6) = 1/3 \n" ); document.write( "Substitute the value for y above in the 2nd equation \n" ); document.write( "(x-6)/((7/3)x-6) = 1/3 \n" ); document.write( "Solve for x: \n" ); document.write( "3x - 7/3x = 12 \n" ); document.write( "This gives x = 18 \n" ); document.write( "Thus y = 7*18/3 = 42 \n" ); document.write( "So the ratio if 6 is added to both is 24/48 = 1/2 \n" ); document.write( " \n" ); document.write( " |