document.write( "Question 490191: question:
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document.write( "if 3 1/2 tons of coals cost $21.75. what will be the bill of 7 1/2 tons of coals? can anyone provide me the solution for this problem? thank you.. \n" );
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Algebra.Com's Answer #333912 by josmiceli(19441) You can put this solution on YOUR website! 3 and 1/2 tons of coal costs $21.75 \n" ); document.write( "Twice as much coal would cost twice as much, so \n" ); document.write( "7 tons of coal costs $43.50 \n" ); document.write( "Each ton of coal costs $43.50 / 7 = $6.22 \n" ); document.write( "A half-ton of coal would then cost $3.11 \n" ); document.write( "7 and 1/2 tons then costs $43.50 + $3.11 = $46.61 \n" ); document.write( "(each step rounded to nearest cent) \n" ); document.write( " |