document.write( "Question 315387: John is traveling to a meeting that is 28 miles away. He needs to be there in 30 minutes. How fast does he need to go to make it to the meeting on time? \n" ); document.write( "
Algebra.Com's Answer #225652 by jim_thompson5910(35256)\"\" \"About 
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Use the equation d=rt where d is the distance, r is the speed, and t is the time.\r
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\n" ); document.write( "\n" ); document.write( "So we're given that \"a meeting that is 28 miles away. He needs to be there in 30 minutes.\", which means that d=28 and t=0.5 (30 minutes = 0.5 hours). Plug these values in to get: \r
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\n" ); document.write( "\n" ); document.write( "\"28=r%280.5%29\"\r
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\n" ); document.write( "\n" ); document.write( "Now divide both sides by 0.5 and flip the equation to get \"r=56\". So John needs to go 56 mph to go 28 miles in 30 minutes.
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