document.write( "Question 952178: the temporary tire forced us to decrease our average speed by 15 mph. if the 39 mile drive usually takes 45 minutes how much time should i budget for the drive home \n" ); document.write( "
Algebra.Com's Answer #581500 by fcabanski(1391)\"\" \"About 
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D = rt


\n" ); document.write( "39=r*3/4


\n" ); document.write( "39*4/3 = r = 52 mph


\n" ); document.write( "52-15 = 37 mph


\n" ); document.write( "D=rt ---> D/r = t


\n" ); document.write( "39/37 = 1.054054... = 1 hour 3.24 minutes \n" ); document.write( "

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