If you walk 45 minutes at a rate 4km/h and then run for 30 minutes at a rate of 10km/h, how many kilometers will you have gone at the end of one hour and 15 minutes
A person travel from A to B at a constant speed v = 4 km / h. After he travelling \(\frac{2}{3}\) of the distance, he speed up 25% velocities. It takes 28 minutes to go A to B. The length of AB is.....
1.The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Hanoi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4:3. The Ford car decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other. When the Ford car reached Nghe An, the Audi car was still 20 km away from Hanoi. The distance between Hanoi and Nghe An is .... km
2.The smallest value of A= \(\frac{x-y}{x^{4}+y^{4}+6}\) is.....
The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
Nâng cao nhe:The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
Làm thử nào các bạn(mình thì chịu thôi):The Ford car left Hanoi for Nghe An and the Audi car left Nghe An for Ha Noi at the same time. The ratio of their speeds (the Ford car to the Audi car) was 4 : 3. The Ford decreased its speed by 25% and the Audi car increased its speed by 25% after they had passed each other.
When the Ford car reached Nghe An, the Audi car was still 20km away from Hanoi. The distance between Hanoi and Nghe An is ...... km.
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REVIEW GRADE 8- UNIT 9-10-11
I. MULTIPLE CHOICE
1. We don’t know the name of the injured person.
A. burned B. sterile C. wounded D. unconscious
2. Don’t let the victim become chilled.
A. looked tired B. fall asleep C. appeared hungry D. get cold
3. They filled the bucket with water from the river.
A. container B. glass C. pot D. bowl
4. The boy fell his bike and hit his head on the road.
A. of B. for C. off D. out
5. Cool it immediately so as to minimize tissue damage
A. reduce B. deepen C. widen D. enlarge
6. People use first aid in order to the victim's pain and anxiety.
A. cure B. treat C. increase D. ease
7. We can stop the bleeding by using a towel to cover the wound, then put on it.
A. pressure B. medicine C. bandage D. cloth
6. Don't give the victim any food or drink if he or she gets .
A. happy B. sad C. shock D. fainting
7. Cover the burned area with a thick dressing.
A. polluted B. sterile C. dry D. affected
8. Farmers collect household and garden waste to make .
A. compost B. floor coverings C. pipes D. glassware
9. My sister sold all the empty cans she collected funds for the orphans.
A. to take B. to rise C. to raise D. to use
10. You will get back your when you bring the cans back for recycling.
A. deposit B. account C. envelop D. payment
11. means not buying products which are over packaged.
A. Reuse B. Recycle C. Reduce D. Refund
12. is a long thin piece of cloth or paper used for tying round and protecting a wound.
A. Water packs B. Bandage C. Blanket D. Handkerchief
13. She has already her cup five or six times.
A. refilled B. reduced C. reviewed D. recycled
14. The cup of coffee kept her all night.
A. awake B. alone C. asleep D. alive
15. I think we should use such as banana leaves, lotus leaves to wrap things.
A. tree products B. tree leaves C. fruit skins D. trees
16. Plastic bags are difficult to be destroyed, so the amount of garbage will .
A. go down B. reduce C. increase D. go away
17. We felt very happy Tet.
A. since B. in C. on D. at
18. The farmers look for other work get more money for their family.
A. in order to B. so as C. in order that D. so that
19. You should put the affected part under a running cold tap when you have .
A. a shock B. a faint C. a burn D. a pain
20. You should elevate the patient’s feet above the level of the heart.
A. raise B. rise C. press D. reduce
21. A is used for carrying somebody who is sick or injured and who can’t walk.
A. bandage B. armchair C. wheelchair D. crutch
22. Typhoons, floods or droughts can easily a harvest.
A. destroy B. finish C. provide D. defeat
23. My father has worked for that company over ten years.
A. for B. since C. at D. in
24. One of the solutions to reduce the shopping garbage is using .
A. plastic bags B. cloth bags C. wood bags D. liquid bags
25. can take a patient to the hospital quickly.
A. A crutch B. An ambulance C. A wheelchair D. A scale
26. He tried to explain what he did persuade his customers.
A. in order that B. in out of C. so as to D. so as not as
27. Contact an organization like Friend of the Earth information.
A. for B. to C. with D. about
28. He picked the phone as soon as it rang.
A. on B. up C. in D. off
29. How about going to Vincom Center for dinner, Alex?
A. That’s sound interesting. B. That sounds interesting.
C. Not at all. D. Please go ahead.
30. is a type of bed used for carrying the sick or injured people.
A. Stretcher B. Ambulance C. Crutch D. Bandage
31. My sister-in-law fainted but the nurse helped her soon.
A. ease B. revive C. minimize D. cool
