A bird flies at a speed of 250 km/h for 7 hours and 40 minutes.
What distance does it cover?
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A bird flies at a speed of 250 km/h for 7 hours and 40 minutes.
What distance does it cover?
To solve this problem, we will use the formula for distance, which is given by:
Step 1: Convert the time from hours and minutes to hours only.
The bird flies for 7 hours and 40 minutes. To convert 40 minutes to hours, we use the conversion:
Therefore, the total time in hours is:
Step 2: Substitute the given speed and the converted time into the distance formula.
Therefore, the bird covers a distance of approximately km.
Upon comparison with the given answer choices, the correct choice is:
km
km
David runs at a speed of 5 meters per second and covers a distance of 700 meters.
For how long does David run?
Because 7 hours 40 minutes is NOT 7.40 hours! Time doesn't work like decimals. You need to convert: 40 minutes = hours = 0.67 hours.
Divide the minutes by 60! For example: 40 minutes ÷ 60 = 0.67 hours. This works because there are 60 minutes in 1 hour.
That's normal! We usually round to 0.67 hours for easier calculation. The slight rounding explains why the answer is approximately 1916.67 km.
Yes, but then convert speed too! 250 km/h = 250 ÷ 60 = 4.17 km/min. Then: 4.17 × 460 minutes = 1916 km. It's usually easier to convert time to hours.
Ask yourself: Does this seem reasonable? A bird flying 250 km/h for almost 8 hours covering about 1900 km makes sense - that's like flying across several states!
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