Question

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

Answer 1

10) 3. 88 mi/hr

11) 68. 57 mi/hr

Explanation:

10. Running

Average speed formula: v= d/t

givens: 3 2/5 miles and 7/8 hour

• change 3 2/5 to an improper fraction

17/5

• divide the givens by receprocating 7/8 and changing the sign to multiplication

17/5 × 8/7

= 136/35

= 3. 88 mi/hr

11. Driving

Speed formula: s= d/t

givens: 120 miles and 1 3/4 hours

• change 1 3/4 to an improper fraction

7/4

• divide the givens by receprocating 7/4 and changing the sign to multiplication

120/1 × 4/7

= 480/7

= 68. 57 mi/hr

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