document.write( "Question 1103571: Airplane A travels 6300 km at a certain speed. Plane B travels 4500 km at a speed 50 km/h faster than plane A in 3 hrs less time. Find the speed of each plane. \n" ); document.write( "

Algebra.Com's Answer #718255 by josgarithmetic(39628) $\"\"$ $\"About$

You can put this solution on YOUR website!

\r\n" );
document.write( "              SPEED        TIME       DISTANCE\r\n" );
document.write( "A             r             t          6300\r\n" );
document.write( "B             r+50         t-3         4500\r\n" );
document.write( "

\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "--------------------------------
\n" ); document.write( ",... three hours less time.
\n" ); document.write( "--------------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "              SPEED        TIME           DISTANCE\r\n" );
document.write( "A             r             6300/r          6300\r\n" );
document.write( "B             r+50         4500/(r+50)      4500\r\n" );
document.write( "Difference                  3\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Now only one variable is needed, that of either plane, here choosing r for plane A.
\n" ); document.write( " $\"6300%2Fr-4500%2F%28r%2B50%29=3\"$
\n" ); document.write( "Solve for r.
\n" ); document.write( " \n" ); document.write( "

\n" );