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Anonymous users2024-02-0616 km. Here's the answer:
The meeting time of Xiaoqiang and Xiaoli is: 20 (6+4)=2 (hours) The key point is that the time that the dog walks is 2 hours, (because the dog sets off with Xiaoli until the two meet, the dog stops, the time is 2 hours).
So the distance traveled by this dog is: 8*2=16 (km).
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Anonymous users2024-02-0520 (6+4) 2 (hours).
8*2 16 (km).
A: I walked a total of 16 kilometers.
Analysis: Find the distance the dog travels, its time * its speed.
Its speed is 8 kilometers.
Its time is how long two people have gone.
The time it takes two people, their distance, their speed.
That's 2 hours. Then the dog is also 2 hours.
With 2*8 16 (km).
That's the way the dog goes.
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Anonymous users2024-02-04The two walked for a total of 20 (6+4) = 2 hours.
The dog walked 8 * 2 = 16 km.
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Anonymous users2024-02-0320 (4+6) = 2 hours The puppy ran back and forth until they met It took a total of 2 hours.
So the puppy ran a total of 2*8=16 kilometers.
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Anonymous users2024-02-02According to the known conditions, it is possible to find out how much time it took for Xiaoqiang and Xiaoli to meet.
20 (4+6)=2 (hours).
Xiaoli took a dog, this dog set off with Xiaoli, when it met Xiaoqiang, it turned around and walked towards Xiaoli, and when it met Xiaoli, it walked towards Xiaoqiang, until the two met. That is to say, Xiaoqiang and Xiaoli have been walking from the time they set off to the time they met, so the dog also walked for 2 hours, so the dog left.
2*8=16 (km).
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Anonymous users2024-02-01Obviously 16 kilometers, Xiaoqiang and Xiaoli met in 2 hours, enough to walk for 2 hours, so 16 kilometers.
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Anonymous users2024-01-31Set: Xiaoqiang and Xiaoli meet in x hours (that is, the time when the dog goes).
Titled: 6x+4x=20
x = 22 8 = 16 km.
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Anonymous users2024-01-30It took 2 hours for Xiaoqiang and Xiaoli to meet, and the dog walked 16 kilometers in 2 hours.
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Anonymous users2024-01-29It takes 9 hours for a coach to get from A to B.
It takes 6 hours for a truck to get from A to B.
After the truck arrives and stays for an hour, then the passenger car is equivalent to walking for an hour, a total of 260 kilometers, and the two cars are 100 kilometers apart.
It takes 100 (40+60) = 1 hour to meet (i.e., to cover the 100 kilometers), which takes a total of hours.
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Anonymous users2024-01-28Let the speed of the passenger car be 7x kilometers per hour and the truck speed is 9x kilometers, so (7x+9x)*5=480*(1-1 6).
The solution is x=5;So the speed of the bus is 35 kilometers per hour.
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Assuming it's all cars, then there should be wheels:
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