document.write( "Question 1045720: A man flies a small airplane a distance of 180 mi. Because he is flying into head wind, the trip takes him 2 hours. On the way back the wind is still blowing at the same speed so the return trip only takes 1hr and 12 min. What is his speed in the still air? How fast is the wind blowing \n" ); document.write( "
Algebra.Com's Answer #661237 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "
\r\n" );
document.write( "               SPEED     TIME       DISTANCE\r\n" );
document.write( "GOING          r-w        t           d\r\n" );
document.write( "RETURN         r+w        b           d\r\n" );
document.write( "
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Basic Travel RATES rule is RT=D to relate constant rate, time, distance.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"system%28%28r-w%29t=d%2C%28r%2Bw%29b=d%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Solve the system for r and w. Substitute the given values into the formulas to evaluate the values for r and w. \n" ); document.write( "
\n" );