document.write( "Question 604998: Problem: In 2 minutes, a conveyor belt moves 300 pounds of recyclable aluminum from the delivery truck to a storage area. A smaller belt moves the same quantity of cans the same distance in 6 minutes. If both belts are used, find how long it takes to move the cans to the storage area.\r
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document.write( "I used the following equation:\r
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document.write( "300/2 + 300/6 = 300/x\r
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document.write( "My answer is 1.25 minutes.\r
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document.write( "The book's answer is 1-1/2 minutes. What did I do wrong? Please explain how to set up this problem. Thanks! \n" );
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Algebra.Com's Answer #381561 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! In 2 minutes, a conveyor belt moves 300 pounds of recyclable aluminum from the delivery truck to a storage area. \n" ); document.write( " A smaller belt moves the same quantity of cans the same distance in 6 minutes. \n" ); document.write( " If both belts are used, find how long it takes to move the cans to the storage area. \n" ); document.write( ": \n" ); document.write( "We can do it this way \n" ); document.write( "let t = time required when both belts are used to move 300 lb \n" ); document.write( ": \n" ); document.write( "Let the completed job = 1 (moving 300 lb) \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( "Multiply by 6 \n" ); document.write( "6* \n" ); document.write( "Cancel out the denominators \n" ); document.write( "3t + t = 6 \n" ); document.write( "4t = 6 \n" ); document.write( "t = 6/4 \n" ); document.write( "t = 1.5 min \n" ); document.write( " |