Problem #3
Science and medicine. Adriana took 2 h longer to drive 360 mi on the first day of a trip than she took to drive 270 mi on the second day. If her speed was the same on both days, what was the driving time each day?
my answer: Her driving time was 8h for her first day and 6 hours the second day.
Problem#4
Science and medicine. A plane flies 720 mi against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h, what is the plane’s speed in still air?
My answer: The speed of the plane in still air is 150mi/h
both correct.
1 answer
A pilot flies 750 miles west (with the wind). On the return flight (against the wind) following the same flight path, she travels only 600 miles in the same time. Find the speed of the plane. Wind is 15 mph.
1 answer