document.write( "Question 1054224: Please help me to solve this problem.\r
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document.write( "A certain paint mixture weighing 305 kg contains 22% solids suspended in water. How many kilograms of water must be allowed to evaporate to raise the concentration of solids to 27%?\r
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document.write( "Treat the percents given in this exercise as exact numbers, and work to three significant digits.\r
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document.write( "Quantity of water =\r
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Algebra.Com's Answer #669420 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! 305*0.22=67.1 kg of solids \n" ); document.write( "That will still be present and will become 27% of x \n" ); document.write( "67.1/x=0.27/1 \n" ); document.write( "cross-multiply \n" ); document.write( "67.1=0.27x \n" ); document.write( "divide by 0.27 and get 248.51 \n" ); document.write( "249 kg \n" ); document.write( "From 305 kg, this requires 56.5 kg water to evaporate \n" ); document.write( " \n" ); document.write( " |