document.write( "Question 932994: The distance between towns A to B is equal to 48 km. The road connecting A and B is not flat and consists of segments that go either uphill or downhill only. A cyclist rode his bike from A to B and back in 3.5 hours. It is known that the cyclist was moving uphill at a speed 24 km/h. At what speed did the cyclist move downhill? \n" ); document.write( "

Algebra.Com's Answer #566508 by TimothyLamb(4379) $\"\"$ $\"About$

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x = downhill speed
\n" ); document.write( "y = uphill speed = 24 kph
\n" ); document.write( "---
\n" ); document.write( "s = d/t
\n" ); document.write( "---
\n" ); document.write( "1/24 + 1/x = 3.5/48
\n" ); document.write( "1/x = 3.5/48 - 1/24
\n" ); document.write( "x = 1/(3.5/48 - 1/24)
\n" ); document.write( "x = 32
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "x = downhill speed = 32 kph
\n" ); document.write( "---
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