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TL
X= \(\frac{2}{9}\)-\(\frac{1}{6}\)
X=\(\frac{1}{18}\)
Học tốt^^
Độ dài đáy hình tam giác đó là:
420 x 2 : 24 = 35 (cm)
Đáp số: 35 cm.
Chúc bạn học tốt.
😁😁😁
Số bình hoa mẹ đã cắm là:
12 : 6 = 2 (bình)
Đáp số: 2 bình hoa.
Chúc bạn học tốt.
😁😁😁
TL
3 giờ đầu ô tô đi được:
45 x 3 = 135 (km)
2 giờ sau ô tô đi được:
50 x 2 = 100 (km)
Trung bình mỗi giờ đi được:
(135 + 100):5 = 47 (km)
Học tốt^^
VIII. Chia động từ trong ngoặc đúng dạng thì quá khứ đơn
1. I __stayed___ at home all weekend. (stay)
2. Angela ___went___ to the cinema last night. (go)
3. My friends __had____ a great time in Nha Trang last year. (have)
4. My vacation in Hue ___was___ wonderful. (be)
5. Last summer I __visited___ Ngoc Son Temple in Ha Noi. (visit)
6. My parents __were__ very tired after the trip. (be)
7. I _____bought__ a lot of gifts for my little sister. (buy)
8. Lan and Mai ____saw___ sharks, dolphins and turtles at Tri Nguyen aquarium. (see)
9. Trung ___ate__ chicken and rice for dinner. (eat)
10. They _talked___ about their holiday in Hoi An. (talk)
11. Phuong ___returned__ to Hanoi yesterday. (return)
12. We __thought___ the food was delicious.(think)
13. Yesterday, I (go)__went__ to the restaurant with a client.
14. We (drive) ___drove___ around the parking lot for 20 mins to find a parking space.
15. When we (arrive) ___arrived___ at the restaurant, the place (be) ____was__ full.
16. The waitress (ask) __asked_ us if we (have) had reservations.
17. I (say)said, "No, my secretary forgets to make them."
18. The waitress (tell)_told_ us to come back in two hours.
19. My client and I slowly (walk) ___walked___ back to the car.
20. Then we (see) ___saw___ a small grocery store.
21. We (stop)stopped in the grocery store and (buy) __bought____ some sandwiches.
22. That (be) __was____ better than waiting for two hours.
23. I (not go) ____didn't go__ to school last Sunday.
24. She (get) ___Did she get___ married last year?
25. What you (do) _did you do_____ last night? - I (do) __did____ my homework.
26. I (love) _____loved_ him but no more.
27. Yesterday, I (get) _got_____ up at 6 and (have) _____had_ breakfast at 6. 30.
28. They (buy) .......bought......... that house last year.
29. She (not go) ....didn't go......... to school yesterday.
30. That boy (have) .......had........ some eggs last night.
HT
1. I __stayed___ at home all weekend. (stay)
2. Angela ___went___ to the cinema last night. (go)
3. My friends __had____ a great time in Nha Trang last year. (have)
4. My vacation in Hue ___was___ wonderful. (be)
5. Last summer I __visited___ Ngoc Son Temple in Ha Noi. (visit)
6. My parents __were__ very tired after the trip. (be)
7. I _____bought__ a lot of gifts for my little sister. (buy)
8. Lan and Mai ____saw___ sharks, dolphins and turtles at Tri Nguyen aquarium. (see)
9. Trung ___ate__ chicken and rice for dinner. (eat)
10. They _talked___ about their holiday in Hoi An. (talk)
11. Phuong ___returned__ to Hanoi yesterday. (return)
12. We __thought___ the food was delicious.(think)
13. Yesterday, I (go)__went__ to the restaurant with a client.
14. We (drive) ___drove___ around the parking lot for 20 mins to find a parking space.
15. When we (arrive) ___arrived___ at the restaurant, the place (be) ____was__ full.
16. The waitress (ask) __asked_ us if we (have) had reservations.
17. I (say)said, "No, my secretary forgets to make them."
18. The waitress (tell)_told_ us to come back in two hours.
19. My client and I slowly (walk) ___walked___ back to the car.
20. Then we (see) ___saw___ a small grocery store.
21. We (stop)stopped in the grocery store and (buy) __bought____ some sandwiches.
22. That (be) __was____ better than waiting for two hours.
23. I (not go) ____didn't go__ to school last Sunday.
24. She (get) ___Did she get___ married last year?
25. What you (do) _did you do_____ last night? - I (do) __did____ my homework.
26. I (love) _____loved_ him but no more.
27. Yesterday, I (get) _got_____ up at 6 and (have) _____had_ breakfast at 6. 30.
28. They (buy) .......bought......... that house last year.
29. She (not go) ....didn't go......... to school yesterday.
30. That boy (have) .......had........ some eggs last night.
TL
độ dài AB là:
\(\left(13+11\right):2=12\left(cm\right)\)
\(2\) lần độ dài cạnh AB bằng 3 lần độ dài cạnh BC nên độ dài cạnh BC =2/3 độ dài cạnh AB
độ dài cạnh BC là:
\(12.\frac{2}{3}=8\left(cm\right)\)
do ABCD là hình chữ nhật nên AB=CD;AD=BC
\(\Rightarrow CD+AD=AB+BC=12+8=20\left(CM\right)\)