What’s the greatest hundred you can multiply by 17 to get close to but not go over 821
1 answer:
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Answer:
<em>The Boeing 747 had an average speed of 580 mph.</em>
Step-by-step explanation:
<u>Constant speed motion</u>
An object is said to travel at constant speed if the ratio of the distance traveled by the time taken is constant.
Expressed in a simple equation, we have:
Where
v = Speed of the object
d = Distance traveled
t = Time taken to travel d.
From the equation above, we can solve for d:
d = v . t
And we can also solve it for t:
The small airplane travels 1015 miles at a constant speed of v=290 miles/hour. The time it took to arrive its destiny was:
t = 3.5 hours
The Boeing 747 left from the same point 1.75 hours after the small plane and traveled the same distance. It needed a time t' = 3.5 - 1.75 = 1.75 hours, thus its speed must have been:
The Boeing 747 had an average speed of 580 mph.