document.write( "Question 882556: Two friends start running in different directions from the same place. One heads south, while the other heads east. After 3 hours, they are 30 miles apart. How fast is each walking on average? \n" ); document.write( "
Algebra.Com's Answer #532926 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! D = rt \n" ); document.write( "Assuming the same average rate \n" ); document.write( "Applying the Pythagorean Theorem \n" ); document.write( " (r(3hr))^2 + (r(3hr))^2 = 30^2 \n" ); document.write( " 18r^2 = 900 \n" ); document.write( " r^2 = 50 \n" ); document.write( " r = 5√2 mph \n" ); document.write( " |