I don’t know how to do this, please help! :) (10-12 or even just 10) I’m so tired and this is due in the morning pls help 25 points

10) 3. 88 mi/hr11) 68. 57 mi/hr

Step-by-step explanation:

10. RunningAverage speed formula: v= d/tgivens: 3 2/5 miles and 7/8 hour• change 3 2/5 to an improper fraction17/5• divide the givens by receprocating 7/8 and changing the sign to multiplication17/5 × 8/7= 136/35= 3. 88 mi/hr11. DrivingSpeed formula: s= d/tgivens: 120 miles and 1 3/4 hours• change 1 3/4 to an improper fraction7/4• divide the givens by receprocating 7/4 and changing the sign to multiplication120/1 × 4/7= 480/7= 68. 57 mi/hr