document.write( "Question 218429: we are having difficulty setting up equations to solve word problems. \r
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document.write( "al is 3/4 as old as ann. six years ago al was 1/2 as old as ann. how old is each now.\r
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document.write( "age now: ann's age = x
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document.write( "al's age = x-.25 \r
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document.write( "age 6years ago:
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document.write( "ann - x-6
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document.write( "al - x-.50 \n" );
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Algebra.Com's Answer #164527 by Alan3354(69443) You can put this solution on YOUR website! we are having difficulty setting up equations to solve word problems. \n" ); document.write( "al is 3/4 as old as ann. six years ago al was 1/2 as old as ann. how old is each now. \r \n" ); document.write( "\n" ); document.write( "age now: ann's age = x \n" ); document.write( "al's age = x-.25 *********** It's x - .25x \n" ); document.write( "age 6years ago: \n" ); document.write( "ann - x-6 \n" ); document.write( "al - x-.50 ************** Same here, it's x - 0.5x \n" ); document.write( "---------------------------------------------------- \n" ); document.write( "x = Ann's age now \n" ); document.write( "y = Al's age now \n" ); document.write( "y = 0.75x (Now) \n" ); document.write( "y-6 = 0.5x (6 yrs ago) \n" ); document.write( "--------------- \n" ); document.write( "Sub for y into 2nd eqn \n" ); document.write( "0.75x - 6 = 0.5x \n" ); document.write( "0.25x = 6 \n" ); document.write( "x = 24 \n" ); document.write( "Ann is 24 \n" ); document.write( "Al is 18 \n" ); document.write( "----------- \n" ); document.write( "It can be done with one variable, but this is straightforward, imo.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |