document.write( "Question 1103390: The load limit for a bridge is 10 t. A truck with a mass of 4 t carries a load of steel pipes with a mass of 300 kg each. What is the greatest number of steel pipes that can be carried over safely by the truck over the bridge?
\n" ); document.write( "Let the greatest number of steel pipes that can be carried be x.
\n" ); document.write( "Solve using inequalities.
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Algebra.Com's Answer #718172 by Theo(13342)\"\" \"About 
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the bridge can safely carry 10 tons.\r
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\n" ); document.write( "\n" ); document.write( "the mass of the truck is 4 tons.\r
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\n" ); document.write( "\n" ); document.write( "each pipe has a mass of 300 kilograms.\r
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\n" ); document.write( "\n" ); document.write( "300 kilograms is equivalent to 0.330693 tons.\r
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\n" ); document.write( "\n" ); document.write( "everything is now converted to tons.\r
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\n" ); document.write( "\n" ); document.write( "the formula becomes 10 >= 4 + .330693 * x\r
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\n" ); document.write( "\n" ); document.write( "subtract 4 from both sides of this inequality to get 6 >= .330693 * x\r
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\n" ); document.write( "\n" ); document.write( "divide both sides of this inequality by .330693 to get 6 / .330693 >= x\r
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\n" ); document.write( "\n" ); document.write( "solve for x to get x <= 18.14371638\r
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\n" ); document.write( "\n" ); document.write( "round to the lowest integer to get x <= 18.\r
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\n" ); document.write( "\n" ); document.write( "the most number of pipes that can be put on the truck is 18.\r
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\n" ); document.write( "\n" ); document.write( "when that number is reached, the load plus the truck have a mass of 9.952474 tons which is under the limit.\r
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\n" ); document.write( "\n" ); document.write( "put 19 pipes on the truck and the mass is 10.283167 tons which is above the limit.\r
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