ten sat nhan tu anh da vuot nguc tron thoat

NN

Nguyễn Ngọc Hân

29 tháng 7 - olm

#Practice 1 (Language) #Tiếng anh lớp 3

2

NM

Nguyễn Minh Châu

29 tháng 7

nha dai thong bao tin dong troi hom nay

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HD

Hà Đăng Dương

VIP

29 tháng 7

report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report report 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CT

Cao Thu Anh

8 tháng 4 2018

Bai 1:Trong thang dau hai to cong nhan may duoc 800 chiec ao .Sang thang sau, to 1 vuot muc 15%, to 2 vuot muc 20% nen ca 2 to da may duoc 945 cai ao. Hoi thang dau moi to da may duoc bao nhieu cai ao?

Bai 2:Mot xe lua di tu Hue ra Ha Noi .Sau do 1h40', mot xe lua khac di tu Ha Noi vao Hue voi van toc lon hon van toc cua xe lua thu nhat la 5 km/h. Hai xe gap nhau tai mot ga cach Ha Noi 300km. Tim van toc cua moi xe ,biet rang quang duong sat Hue- Ha Noi dai 645 km

#Hỏi cộng đồng OLM #Toán lớp 8

2

MQ

minh quang

15 tháng 5 2020

Bài 1:

gọi x là số áo tổ 1 may được tháng đầu (áo)

đk x>0

Số áo tổ 2 may tháng đầu: 800 - x (áo)

Số áo tổ 2 may tháng hai 120%.(800 -x)= 1,2(800-x) (áo)

Số áo tổ 1 may tháng đầu 115%x=1,15x (áo)

Số áo cả 2 tố tháng hai may nhiều hơn tháng đầu là: 945 -800 =145(áo)

Theo bài ra ta có phương trình:

1,2(800-x)+1,15x -(800-x) -x =145

(=) 960 -1,2x +1,15 x -800 +x -x =145

(=)(960 -800) -(1,2 -1,15 -1+1)x=145

(=) 160 -0,05 x =145

(=)0,05x=15

(=)x=300 (tmđk)

Vậy số áo đội 1 may tháng đầu là: 300 áo

số áo đội 2 may tháng đầu là: 800 - 300 =500 (áo)

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MQ

minh quang

15 tháng 5 2020

Bài 1 đk x là x thuộc N^* mình nhầm

Bài 2: đổi 1h40' =5/3 h

Gọi vận tốc xe lửa thứ nhất là x(km/h)

đk x>0

vận tốc xe lửa thứ hai là x +5 (km/h)

Thời gian xe lửa thứ hai đi đến điểm gặp nhau là: 300/(x+5)(h)

Quãng đường mà xe lửa thứ nhất phải đi là: 645 -300 = 345(km)

Thời gian xe lửa thứ nhất phải đi là: 345/x (h)

Theo bài ra ta có phương trình:

435/x -5/3 =300/(x+5) ( đkxđ: x khác 5 và 0)

(=) 3.345(x+5)/3x(x+5) -5.x(x+5)/3x(x+5)=3.300.x/3x(x+5)

=) 1035(x+5) -5(x²+5) -900x=0

(=)1035x +5175 -5x²-25x -900x =0

(=) -5x² + 110x +5175 =0

(=) -5(x² -22x -1035)=0

(=)x² -45x +23x -1035 =0

(=)x(x-45) +23(x-45) =0

(=) (x-45)(x+23)=0

(=) x - 45 =0 hoặc x +23 =0

(=) x=45(tmđk) hoặc x=-23(không tmđk)

Vậy vận tốc lửa thứ nhất là 45 km/h

vận tốc lửa thứ hai là 45 + 5 = 50 km/h

Chúc bạn học tốt

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MC

MiKu Chibi

14 tháng 11 2016 - olm

cau 7 : mot ten toi pham bi bat . canh sat cho han chon 1 trong 3 can tu . can tu thu nhat la lua chay dung dung . can tu thu 2 la 1 ten sat thu mau lanh cam sung . can tu thu 3 co 3 con ho nhin doi 3 nam . hoi anh ta chon can tu nao ???

#Hỏi cộng đồng OLM #Toán lớp 2

8

PA

Phạm Ánh Dương

14 tháng 11 2016

anh ta chọn căn tù thứ 3

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NH

Nguyễn Hữu Triết

14 tháng 11 2016

Hắn chon căn phòng thứ 3

Vì sử tử nhịn đói 3 năm đã chết

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PD

phan dinh quang

1 tháng 8 2018 - olm

co hai anh em 1thang ten tum 1thang ten da hai chung no lam an cuop mot hom co 1 ba nha giau di qua cay cau gan nha do hai thang thay lien lai cuoi thoi vang . hoi sao ba nha giau lai thoat

#Hỏi cộng đồng OLM #Ngữ văn lớp 1

1

US

Uchiha Sasuke

1 tháng 8 2018

vi b a nem thoi vang xuong song nge tum thang cuop anh tuong ai keu minh nen chay ve nha la to da thang cuop em tuong anh keu minh nen chay ve nha the roi ba thoat

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AT

Anh Thịnh

7 tháng 8 2023 - olm

chi ra va phan tich bien phap tu tu hoan du trong hai cau sau

a, Tu nhien ,Xa Phu rut cay sao.Tieng sao thoat ra tu ong truc veo von....Tieng sao theo chan hai nguoi toi loi re

b,Nhan cua qua khu nhung con de vo ,nhung nan doi ,ta da lam nennhung mua vang nam tan ,bay tan

#Hỏi cộng đồng OLM #Ngữ văn lớp 6

1

DT

Đoàn Trần Quỳnh Hương

7 tháng 8 2023

Nếu bạn không phiền có thế type lại câu hỏi với dấu câu đầy đủ được không ạ, mình không dịch được hết

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ET

e thi nga

12 tháng 3 2020 - olm

tim phep nhan hoa trong cac doan van sau.cho biet chung thuoc kieu nhan hoa nao .neu tac dung cua chung.a)CHI COC THOAT NGHE TIENG HAT TU TRONG DAT VANG VANG LEN,ko hieu nhu the nao . giat nay hai dau canh , muon bay .den khi dinh than lai chi moi tron tron mat, giuong canh len , nhu sap danh nhau.chi lo do ve phia cua hang toi:hoib)moi chiec la rung co mot linh hon rieng , mot tam tinh rieng,mot cam giac rieng.co chiec la nhe nhang khoan khoaidua gion, mua may voi lan gio thoang,nhu tham bao...

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#Hỏi cộng đồng OLM #Ngữ văn lớp 6

1

ET

e thi nga

12 tháng 3 2020

mn tl dum em voi a em dang can gap mn lam dum em voi ai lam duoc em k cho

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HA

Huyền Anh Kute

15 tháng 1 2017

Em co nhan xet gi ve su quan sat va mieu ta cua tac gia trong bai Song nuoc Ca Mau? (Tac gia da lua chon vi tri nao de quan sat va mieu ta? Vi tri ay co thuan loi gi trong vc quan sat va mieu ta? Cach lua chon tu ngu, chi tiet de mieu ta co gi dac sac?...)

#Hỏi cộng đồng OLM #Ngữ văn lớp 6

1

NL

Nguyễn Lan Hương

15 tháng 1 2017

Văn bản "Sông nước Cà Mau" đã được tác giả miêu tả hết sức phong phú,độc đáo.Ngỗi trên thuyền,tác giả theo con sông xuôi về Cà Mau-nơi tận cùng của tổ quốc.Vì ngồi trên thuyền,tác giả có thể dễ dàng quan sát mọi cảnh vật xung quanh-Trên thì trời xanh,dưới thì nước xanh,xung quanh mình chỉ toàn một sắc xanh cây lá.Tác giả đã quan sát sông nước Cà Mau bằng rất nhiều giác quan,để cho thấy được tình yêu vùng bờ bãi Cà Mau của tác giả.Nhà văn không ngừng sử dụng những biện pháp nghệ thuật so sánh,điệp từ,...để cho chúng ta cảm nhận được những vẻ đẹp tuyệt diệu mà hoang sơ,kì bí của Cà Mau,khơi dậy lòng yêu mũi đất tận cùng cảu tổ quốc này.

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PH

Pham Huyen Trang

5 tháng 2 2017

Hay,hay qua

Tuyet voi ong mat troi

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CT

Cao Thi Thuy Duong

3 tháng 10 2016

bai tap 2gia su can chon ca 3 cot A,B va C khi do am can thuc hien thao tac gi hay thuc hien thao tac do va nhan xetchon 1 doi tuong 1 o 1 hang 1 cot hoac 1 khoi tuy y.nhan giu phim crl va chon 1 doi tuong khac .hay cho nhan xet ve ket qua nhan duoc thuc hien cac thao tac chon 1 o 1 hang 1cot hoac1 khoi tren trang tinh.quan sat su thay doi noi dung cua hop ten trong qua trinh chonnhay chuot o nut B100 vao hop ten cuoi cung nhan phim enter.chon nhan xet ve ket qua han duoc .tuong tu ,nhap cac...

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#Hỏi cộng đồng OLM #Tin học lớp 7

2

LA

Lê Anh Thư

4 tháng 10 2016

bn viết dấu đc 0 thế?

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TM

Trần Mai Quỳnh Anh

1 tháng 3 2018

- Để chọn cả 3 cột A,Bvaf C ta cần thực hiện : nháy chuột vào tên cột để chọn cột nhấn giữ phím ctrl và nháy chuột chọn các cột tiếp theo

- Ta thấy các ô hay các hàng hay các cột hoặc khối đều được chọn

- Khi ta chọn một ô ta thấy địa chỉ của ô trên hộp tên thay dổi với tên cột trước tên hàng sau (VD: ô A4, ô A1,...)

- Khi ta chọn một hàng (hoặc cột) thì địa chỉ của ô đầu tiên trên hàng (hay cột) hiển thị ở trang tính sẽ được hiển thị trên hộp tên (VD: chọn hàng 22 thì trên hộp tên hiển thị A22, chọn cột A thì hộp tên hiển thị A1)

- Khi ta chọn một khối bất kì thì hộp tên sẽ hiển thị địa chỉ của ô đầu tiên ta chọn (VD: khối A1:B4 thì hộp tên hiển thị A1)

- khi ta nhập dãy B100 vào hộp tên và nhấn phím enter thì trên ô trên trang tính sẽ di chuyển đến hàng 100 và cột B

- khi ta nhập A:A vào hộp tên thì cột A sẽ được chọn

- khi ta nhập A:C thì cột A, B,C đều được chọn

- tương tự 2:2 thì hàng 2 được chọn, 2:4 thì hàng 2,3,4 được chọn

-Khi ta nhập B2:D6 vào hộp tên thì khối B2:D6 được chọn

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CT

Cao Thi Thuy Duong

2 tháng 10 2016

bai tap 2gia su can chon ca 3 cot A,B va C khi do am can thuc hien thao tac gi hay thuc hien thao tac do va nhan xetchon 1 doi tuong 1 o 1 hang 1 cot hoac 1 khoi tuy y.nhan giu phim crl va chon 1 doi tuong khac .hay cho nhan xet ve ket qua nhan duoc thuc hien cac thao tac chon 1 o 1 hang 1cot hoac1 khoi tren trang tinh.quan sat su thay doi noi dung cua hop ten trong qua trinh chonnhay chuot o nut B100 vao hop ten cuoi cung nhan phim enter.chon nhan xet ve ket qua han duoc .tuong tu ,nhap cac...

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