document.write( "Question 1205067: Jessie takes two uber rides. The first ride cost $32 to go 15km. The second ride cost $55 to go 112km.
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Algebra.Com's Answer #841692 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "Jessie takes two uber rides. The first ride cost $32 to go 15km. The second ride cost $55 to go 112km.
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document.write( "The difference in distances is  112-15 km = 97 km.\r\n" );
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document.write( "The difference in the cost is 55-32 = 23 dollars.\r\n" );
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document.write( "The rate of charging is the ratio   = 4.217391 kilometers per dollar with 6 decimal places.\r\n" );
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document.write( "Or, if you prefer the rate of charging in dollars per kilometer, then take the reciprocal value\r\n" );
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document.write( "     = 0.237113 dollars per kilometer.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "Notice that I do not round the rate to two decimals: I keep it with more than two decimals.
\n" ); document.write( "There is NO NEED to round the rate to two decimals - because the rate of charging IS NOT the cost.\r
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\n" ); document.write( "\n" ); document.write( "But when the counter in the uber car will show the cost of the ride,
\n" ); document.write( "it will calculate the cost rounded to two decimals of a dollar (to the cents).\r
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