document.write( "Question 63675:  jose'and mike are members of a school wideo club. they were discussing sharing homemade videotapeds. when jose asked to borrow mike's videos, mike replied: \"each video completely fills one videotape. i have just one videotape at home. however, i used to have lots of tapes. i gave 1/2 of my videotapes plus 1/2 a tape to joanne. i gave 1/2 of my remaning videotapes and 1/2 a tape to martiza. lastly, i gave 1/2 of my remaning videotapes and 1/2 a tape to jeff.
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document.write( "how could many videotapes did mike have originally? why could joanne, martiza, and jeff watch all of the videotapes that mike gave them? \n" );
document.write( "
| Algebra.Com's Answer #44398 by ankor@dixie-net.com(22740)     You can put this solution on YOUR website! i gave 1/2 of my videotapes plus 1/2 a tape to joanne. i gave 1/2 of my remaning videotapes and 1/2 a tape to martiza. lastly, i gave 1/2 of my remaning videotapes and 1/2 a tape to jeff. \n" ); document.write( ": \n" ); document.write( "Let x = number of tapes Mike originally had \n" ); document.write( ": \n" ); document.write( "(.5x + .5) given to Joan \n" ); document.write( ": \n" ); document.write( "x - (.5x + .5) left \n" ); document.write( "Simplify: \n" ); document.write( "x - .5x - . 5 \n" ); document.write( "(.5x - .5) left \n" ); document.write( ": \n" ); document.write( ".5(.5x-.5) + .5 given to Matilda \n" ); document.write( "Simplify \n" ); document.write( ".25x - .25 + .5 \n" ); document.write( ".25x +.25 given to Matilda \n" ); document.write( ": \n" ); document.write( "(.5x - .5) - (25x+.25) left \n" ); document.write( ".5x -.5 - .25x - .25 \n" ); document.write( ".25x -.75 left\r \n" ); document.write( "\n" ); document.write( ": \n" ); document.write( ".5(.25x -.75) + .5 given to Jef \n" ); document.write( ".125x - .375 + .5 \n" ); document.write( ".125x + .125 given to Jef \n" ); document.write( ": \n" ); document.write( "(.25x - .75) - (.125x + .125) = 1 left \n" ); document.write( ".25x - .75 - 125x - .125 = 1 \n" ); document.write( ".125x - .875 = 1 \n" ); document.write( ".125x = 1 + .875 \n" ); document.write( "x = 1.875/.125 \n" ); document.write( "x = 15 tapes Mike had originally \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check it: \n" ); document.write( "15 originally \n" ); document.write( " 8 given to Joan (7.5+.5) \n" ); document.write( "--- \n" ); document.write( " 7 left \n" ); document.write( " 4 given to Matilda (3.5+.5) \n" ); document.write( "--- \n" ); document.write( " 3 left \n" ); document.write( " 2 give to Jef (1.5+.5) \n" ); document.write( "--- \n" ); document.write( " 1 left \n" ); document.write( ": \n" ); document.write( "\"why could joanne, martiza, and jeff watch all of the videotapes that mike gave them?\" \n" ); document.write( "I guess because, of the tapes they received, none were actually half a tape\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |