document.write( "Question 181880: Method of Substitution=Problem Solving
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document.write( "6. Samantha works twice as many hours per week as Adriana. Together they work a total of 39 hour one week.
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document.write( "a) State how ou will assign variables.
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document.write( "b) Write an equation to represent the information in the first sentence.
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document.write( "c) Write an equation to represent the information in the second sentence.
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document.write( "d) Use the method of substitution to find the number of hours worked by each person.
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document.write( "Please and thank you very much.
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document.write( "i tried so much but i didnt get it at all.:( \n" );
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Algebra.Com's Answer #136504 by tvandenberg(45)![]() ![]() ![]() You can put this solution on YOUR website! a) Just assign some variables. Let's choose S to be the hours for Samantha and A for Adrianna.\r \n" ); document.write( "\n" ); document.write( "b) S = 2 * A\r \n" ); document.write( "\n" ); document.write( "c) S + A = 39\r \n" ); document.write( "\n" ); document.write( "d) Substituting (b) into (c)... 2 * A + A = 39 .... 3 A = 39 ... A = 13\r \n" ); document.write( "\n" ); document.write( " Substituting back into (b) .... S = 2 * 13 = 26\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hope this helps, Troy. \n" ); document.write( " |