document.write( "Question 560312: I need help with this word problem. i have to use a formula d=r*t and i also draw a table to find what the equation will look like
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document.write( "Problem:
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document.write( "At 10 a.m. Dana leaves for work riding her motorbike at 30 mph. Her husband Bill, realizes that she left some important papers and so he leaves 20 minutes later to deliver the papers. if he drives the same route at 50 mph, how long will it take him to catch up to her?\r
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document.write( "my table i set up\r
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document.write( " d = r * t
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document.write( "Dana d=10(r-30) r-30 10 \r
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document.write( "Bill d=20r r 20\r
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document.write( "20r=10(r-30)
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document.write( "20r=10r-300
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document.write( "-10r=-10r
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document.write( "10r/10= -300/10
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document.write( "r=-30\r
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document.write( "is this right and if it is where do i go from here? \n" );
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Algebra.Com's Answer #363829 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! I can solve it the way I do this kind of problem \n" ); document.write( "----------- \n" ); document.write( "I imagine that a stopwatch is started when the \n" ); document.write( "2nd person, Bill, leaves. Then I need to know \n" ); document.write( "how much of a head start the 1st person, Dana, got. \n" ); document.write( "----------- \n" ); document.write( "Dana's head start is \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "----------- \n" ); document.write( "Now when the stopwatch is started, they both will be \n" ); document.write( "traveling for the same amount of time, \n" ); document.write( "Let \n" ); document.write( "Bill's equation: \n" ); document.write( "(1) \n" ); document.write( "Dana's equation: \n" ); document.write( "(2) \n" ); document.write( "--------------- \n" ); document.write( "Substitute (1) into (2) \n" ); document.write( "(2) \n" ); document.write( "(2) \n" ); document.write( "(2) \n" ); document.write( "It will take him a half hour to catch her \n" ); document.write( "check answer: \n" ); document.write( "(1) \n" ); document.write( "(1) \n" ); document.write( "(1) \n" ); document.write( "and \n" ); document.write( "(2) \n" ); document.write( "(2) \n" ); document.write( "(2) \n" ); document.write( "(2) \n" ); document.write( "This is the distance from home to where they meet \n" ); document.write( "OK \n" ); document.write( "The table would have |