Các câu hỏi tương tự
tìm X :
a) x-3/4= 1/7
b) x+ 7/5 = 9/8 . 4/27
c) 2/5 - 3/7 = x/70
d) 2/9 - 7/8 . x = 1
tìm x,y biết :
a) 3x-1/5 = 2x-1/7 = 2y+5/x+1
b) 3x-4/6 = y-1/2 = 3x-y-3/2y
c) x/2 =y/3 = z/4 và 2x^2 + y^2 3z^2 = -124
cần giải gấp nha , ai giải trước mình tick cho
a, 32 x 24 x 5 : [ 41 - ( 2 x x + 5 ) = 23 x 5.
b, 2 x 3x = ( 2 x 32 ) x 27.
c, {[( 2 x x + 14) : 22 - 3 ] : 2 } = 1.
Tìm x \(\in\) Z, biết:
1) x là số không âm và nhỏ hơn 5.
2) (x-3) là số không âm và nhỏ hơn 4.
3) (x+2) là số dương và không lớn hơn 5.
a) – 6 < x < 0 d) 0 < x < 5
b) – 3 < x < 4 e) 0 ≤ x ≤ 4
c) – 5 < x < 5 f) -10 ≤ x ≤ -7
GIÚP MÌNH VS MÌNH ĐANG GẤP
x2 +x =0
2.(x-1) +3(x-2) =x-4
4 Complete the questions and short answers in these short dialogues.0 X: 0 Can you swim?Y: Yes, I 00 can.1 X: 1 _______________ any pizzas in the fridge? Y: No, there 2 _________.2 X: 3 _______________ a pet?Y:Yes, they 4 _________.3 X: 5 _______________ the piano? Y: No, he 6 _________.4 X: 7 _______________ a vegetarian café in your town? Y: Yes, 8_________.
Đọc tiếp
4 Complete the questions and short answers in these short dialogues.
0 X: 0 Can you swim?
Y: Yes, I 00 can.
1 X: 1 _______________ any pizzas in the fridge?
Y: No, there 2 _________.
2 X: 3 _______________ a pet?
Y:Yes, they 4 _________.
3 X: 5 _______________ the piano?
Y: No, he 6 _________.
4 X: 7 _______________ a vegetarian café in your town?
Y: Yes, 8_________.
III.1. I ……………………… (translate) the text before the bell.2. She ……………………… (do) her lessons by the evening.3. He ……………………… (clean) his room by five o’clock.4. We ……………………… (speak) to him before the meeting.5. Mother……………………… (cook) dinner by seven o’clock.6. Her son _……………………… (not do) the homework by nine o’clock.7. She ……………………… (not make) a dress before party.8. What ……………………… (they do) by three o’clock?9. Who……………………… (not finish) the task before the bell?10. W...
Đọc tiếp
III.
1. I ……………………… (translate) the text before the bell.
2. She ……………………… (do) her lessons by the evening.
3. He ……………………… (clean) his room by five o’clock.
4. We ……………………… (speak) to him before the meeting.
5. Mother……………………… (cook) dinner by seven o’clock.
6. Her son _……………………… (not do) the homework by nine o’clock.
7. She ……………………… (not make) a dress before party.
8. What ……………………… (they do) by three o’clock?
9. Who……………………… (not finish) the task before the bell?
10. Why …………………………….…(you not sweep) the floor before your mother’s coming?
11. ……………………………………… (your child go) to bed by ten o’clock last night ?
12. ……………………………………. (you reach) your house before the sunset?
13. …………………………………… (they receive) the letter by that time?
14. Why ……………………..………… (they not have) lunch by 12 o’clock?
15. We ………………………( have) dinner by 8 o’clock.
16. They ……………………… (start) a fire before the sunset.
17. I was upset because I……………………… (lose) my keys.
18. Native Americans ………………………_ (not use) wheels before 1492.
I ………………………(finish) doing the housework before they came.
Fill in the blank with the correct comparative forms.1. fast 11. attractive 2. thin 12. noisy 3. large 13. old 4. tired 14. interesting 5. good 15. wide 6. clever 16. independent 7. short 17. dry 8. early 18. polluted 9. happy 19. long 10. carefully 20. cheap
Đọc tiếp
Fill in the blank with the correct comparative forms.
1. fast 11. attractive
2. thin 12. noisy
3. large 13. old
4. tired 14. interesting
5. good 15. wide
6. clever 16. independent
7. short 17. dry
8. early 18. polluted
9. happy 19. long
10. carefully 20. cheap