document.write( "Question 55478: The problem says: Arianna took 2 h longer to drive 360 mi on the first day of a trip than she took to drive 270 mi on the second day. If her speed was the same on both days, what was the driving time each day?\r
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Algebra.Com's Answer #37642 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
d=rt [Use the distance formula]
\n" ); document.write( "First day: 360 miles=(r)(t+2)
\n" ); document.write( "Second day: 270 miles =(r)(t)\r
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\n" ); document.write( "Since the speed (r) was the same, than
\n" ); document.write( "d=rt
\n" ); document.write( "r=d/t
\n" ); document.write( "so,
\n" ); document.write( "r=r or
\n" ); document.write( "d/t=d/t [Plug in the values for the first and second day]
\n" ); document.write( "360 miles/(t+2) = 270/t [Solve for t]
\n" ); document.write( "360/(t+2)=270/t
\n" ); document.write( "360t=270(t+2)
\n" ); document.write( "360t=270t+540
\n" ); document.write( "360t-270t=540
\n" ); document.write( "90t=540
\n" ); document.write( "t=6 hours on the second day
\n" ); document.write( "(t+2)=(6+2)=8 hours on the first day
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\n" ); document.write( "check by plugging the values back into each of the original equations:\r
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