document.write( "Question 1017315: A jet plane, flying 160 mph faster than a propeller plane, travels 3840 miles in 4 hours less time than the propeller plane takes to fly the same distance. How fast does each plane fly? \n" ); document.write( "

Algebra.Com's Answer #633613 by josgarithmetic(39620) $\"\"$ $\"About$

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r, rate for the propellor plane
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document.write( "             speed         time     distance\r\n" );
document.write( "JET          r+160         t-4       3840\r\n" );
document.write( "PROP          r             t        3840\r\n" );
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\n" ); document.write( "\n" ); document.write( "Form the system of equations according to RT=D, basic travel rates rule.\r
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\n" ); document.write( "\n" ); document.write( " $\"system%28%28r%2B160%29%28t-4%29=3840%2Crt=3840%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "Somee algebra steps and substitutions to solve the system.
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