document.write( "Question 91604: Water is in liquid state if its temperature, t(in degrees celsius), satisfies t-50<50. find the two solutions of t-50=50.what do the solutions represent? please help really confused never seen this before. \n" ); document.write( "
Algebra.Com's Answer #67340 by bucky(2189)\"\" \"About 
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I believe this problem should be that for water in a liquid state the Celsius temperature
\n" ); document.write( "must satisfy the equation:
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\n" ); document.write( "\"abs%28t-50%29+=+50\"
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\n" ); document.write( "The absolute value signs mean that whatever is within the signs will be a positive value whether
\n" ); document.write( "the quantity is negative or positive.
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\n" ); document.write( "To solve this equation you form two equations ... one equation by treating the quantity inside
\n" ); document.write( "the absolute value signs as positive and another equation by treating the quantity inside the
\n" ); document.write( "absolute value signs as negative.
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\n" ); document.write( "One other rule that applies to inequalities is that you can solve them using the rules and
\n" ); document.write( "processes that apply to equations with the exception that if you multiply or divide both
\n" ); document.write( "sides by a negative quantity you need to reverse the direction of the inequality.
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\n" ); document.write( "Let's apply this process to the equation of this problem. First, let's form an inequality
\n" ); document.write( "by treating the quantity inside the absolute value signs as a positive quantity. With this
\n" ); document.write( "process the inequality becomes:
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\n" ); document.write( "\"%28t-50%29%3C+50\"
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\n" ); document.write( "Solve by getting rid of the -50 on the left side by adding +50 to both sides. This makes
\n" ); document.write( "the inequality become:
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\n" ); document.write( "\"t+-+50+%2B+50+%3C50+%2B+50\"
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\n" ); document.write( "After the addition the inequality simplifies to:
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\n" ); document.write( "\"t+%3C+100\"
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\n" ); document.write( "This is one answer. We will return to it in a bit. But first, let's set up a second
\n" ); document.write( "inequality by treating the quantity inside the absolute value signs as a negative
\n" ); document.write( "quantity. When you do, the inequality becomes:
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\n" ); document.write( "\"-%28t+-+50%29+%3C+50\"
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\n" ); document.write( "get rid of the minus sign on the left by multiplying both sides by -1. And don't forget the
\n" ); document.write( "rule that if you multiply (or divide) both sides of an inequality by a negative, you reverse
\n" ); document.write( "the direction of the inequality sign. So multiplying this inequality by -1 makes it become:
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\n" ); document.write( "\"%28t+-+50%29+%3E+-50\"
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\n" ); document.write( "Solve this by adding +50 to both sides to get:
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\n" ); document.write( "\"t+%3E+0\"
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\n" ); document.write( "This is the second answer.
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\n" ); document.write( "So looking at our two answers we have \"t%3C100\" and \"t+%3E+0\" and this tells us that
\n" ); document.write( "for water to be in the liquid state the Celsius temperature range of the water must be
\n" ); document.write( "between 0 degrees C and 100 degrees C. On the Celsius scale of temperatures, at 0 degrees C
\n" ); document.write( "water freezes to ice and at 100 degrees C it boils and changes to steam. Therefore,
\n" ); document.write( "again, if water is above 0 degrees C but below 100 degrees C it will be in the liquid
\n" ); document.write( "state.
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\n" ); document.write( "Hope this helps you to understand the problem and what it means. And hope the discussion
\n" ); document.write( "of absolute value quantities makes some sense to you also.
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