Answer:
Explanation:
1). Average speed of a skydiver = [tex]\frac{\text{Distance covered}}{\text{Time taken}}[/tex]
= [tex]\frac{9}{2.5}[/tex]
= 3.6 km per minute
2). Average speed of the butterfly = [tex]\frac{30}{14}[/tex]
= [tex]\frac{15}{7}[/tex]
= [tex]2\frac{1}{7}[/tex] meter per second
3). Average speed of the race car = [tex]\frac{500}{3}[/tex]
= [tex]166\frac{2}{3}[/tex] miles per hour
4).Average speed = [tex]\frac{\text{Distance traveled}}{\text{Time taken}}[/tex]
Distance traveled = Average speed × Time
= 85 (km per hour) × 3.5 (hours)
= 297.5 km
