In training for a triathlon, yuna swam 1.9 miles in the open ocean, which took her 2 hours. for the first part of her swim, she averaged 1.4 miles per hour. for the second part of her swim, she swam against the current and started to tire, so her average speed decreased to 0.8 mph. what was the distance of the first part of yuna's swim? round to the nearest tenth as needed. the distance in the first part of her swim was miles.