document.write( "Question 120904: Three numbers are in the ratio 2:4:7. If the first number is multiplied by 4, the result is 9 less than the sum of the other two. find all three numbers. \n" ); document.write( "
Algebra.Com's Answer #88711 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Three numbers are in the ratio 2:4:7. If the first number is multiplied by 4, the result is 9 less than the sum of the other two. find all three numbers. \n" ); document.write( ": \n" ); document.write( "WE can call it 2x; 4x; 7x without changing the ratio \n" ); document.write( "1st number = 2x \n" ); document.write( "2nd number = 4x \n" ); document.write( "3rd number = 7x \n" ); document.write( ": \n" ); document.write( "Write an equation for: \n" ); document.write( "\"If the first number is multiplied by 4, the result is 9 less than the sum of the other two.\" \n" ); document.write( "4(2x) = 4x + 7x - 9 \n" ); document.write( "8x = 11x - 9 \n" ); document.write( "8x - 11x = -9 \n" ); document.write( "-3x = -9 \n" ); document.write( "x = + 3 \n" ); document.write( ": \n" ); document.write( "Our three numbers: \n" ); document.write( " 2(3) = 6 \n" ); document.write( " 4(3) = 12 \n" ); document.write( " 7(3) = 21 \n" ); document.write( " |