document.write( "Question 432688: Hi. I am having complications solving this word problem involving inequalities. Please solve it and/or help me on. Thanks a lot!\r
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document.write( "9. A vat contains 100 gallons of 50% brine solution. What is the greatest amount of water that can be added if the salt content cannot drop below 25%?\r
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document.write( "Thanks!
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document.write( "Megan, 13 year old Alegebra student
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Algebra.Com's Answer #300066 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 9. A vat contains 100 gallons of 50% brine solution. \n" ); document.write( " What is the greatest amount of water that can be added if the salt content cannot drop below 25%? \n" ); document.write( ": \n" ); document.write( "let w = amt of water \n" ); document.write( ": \n" ); document.write( "Write an amt of brine equation: \n" ); document.write( ".50(100) = .25(x+100) \n" ); document.write( "50 = .25x + 25 \n" ); document.write( "subtract 25 from both sides: \n" ); document.write( "50 - 25 = .25x \n" ); document.write( "25 = .25x \n" ); document.write( "Now we can write this as an inequality \n" ); document.write( ".25x =< 25 \n" ); document.write( "x =< \n" ); document.write( "x =< 100 gal of water \n" ); document.write( "this means, 100 or less gal of water can be added to keep the salt content at or above 25% \n" ); document.write( " |