document.write( "Question 262447: Olimpiada Ivanova,a world-record holding race-walker,is on one end of a 6 mile track. John Doe,an average walker,is on the other end of the track. The two start walking towards each other and meet in 1/2 hour. If Olimpiada's average speed exceeds John's by 6 mph,find the speed of both walkers.Use the 5-step method. Also, be sure to draw a distance diagram and fill in a table to set up the problem.
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document.write( "(I've done the first 3 steps.)
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document.write( "1st step- Use variables to represent your unknowns.
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document.write( "2nd step- Draw a diagram in the space below.
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document.write( "3rd step- Fill in a table in the space below.
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document.write( "4th step- Set up and solve your equation.
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document.write( "5th step- Check.\r
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document.write( "My work:
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document.write( "Variables: Let O = the speed of Olimpiada.Let J = the speed of John.
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document.write( "Diagram:
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document.write( " John Olimpiada
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document.write( "Start------->meet<-------start
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document.write( " 6 miles
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document.write( "Table: Rate (mph)/ Time (h)/ Distance (m)
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document.write( "Olimpiada. O 1/2 1/2(0)
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document.write( "John. j 1/2 1/2j
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document.write( "Set-up and solve your equation: ??????
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document.write( "Check: ???????
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document.write( "I'm not even sure I'm doing the first 3 right.\r
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document.write( "
Algebra.Com's Answer #193357 by richwmiller(17219) You can put this solution on YOUR website! rt=d \n" ); document.write( "rt+rt=d \n" ); document.write( "d=6 \n" ); document.write( "o/2+j/2=6 \n" ); document.write( "o=j+6 \n" ); document.write( "j=3 o=9 \n" ); document.write( "I leave the check for you. \n" ); document.write( "just plug in the 3 and the 9 and see if the equations work \n" ); document.write( " |