Question 964833
The plane that left Los Angeles travels 205 miles in the first half hour. Since total distance is 830 miles, the planes are 625 miles apart when the second plane starts. The planes then approach each other at 410mph+530mph=940mph. Since they are 625 miles apart, they will meet in 625mile/940mph=0.665 hour.
The plane that left Denver traveled 530 mph for .665 hour which means it is (0.665hr)(530mph)=352.4 miles from Denver.