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khi xát 100 kg thóc thì đc 60 kg gạo . hỏi phải xát bao nhiu g thóc để đc 100kg gạo NL : hỏi hộ th bn

ai giúp em với ạ trình bày chi tiết giúp em

Bài 3: Tìm x, biết: a) 2x + 50 = 0 b) (x – 2 )(x + 1) = 0 c) 5x(x – 1) = 1 – x d) (3x – 4)2 – (x + 1)2 = 0 e) x2 + 7x + 12 =0

Giải tam giác abc , góc A = 90 độ a) BC = 72cm , góc B=58 độ b) AB =20cm , góc B = 48 độ c) Ab =15cm , góc C =30 độ Helpp nhanh aa

Đổi câu trực tiếp gián tiếp: 1.“Don’t go near the sea, children”. (The children’s mother warned) ……………………………………… 2.“Don’t be late, Jim”. (Jim’s father told) ……………………………………… 3."Be quiet, children”. (The librarian told) ……………………………………… 4."Don’t shoot!” (The officer ordered me) ……………………………………… 5."Don’t use the telephone after 7.00”. (The landlady told us) ……………………………………… 6."Open the door, please”. (My mother told me) ……………………………………… 7."on’t spend too much money on your holiday”. (My father told me) ……………………………………… 8."Hurry up”. (He told me) ……………………………………… 9."Leave your keys on the desk, please”. (the receptionist told us) ……………………………………… 10."Run!” (The general ordered the soldiers) ……………………………………… 11.“Listen carefully”, he said to us. ……………………………………… 12."Don’t wait for me if I’m late”, Ann said to him. ……………………………………… 13."Eat more fruit and vegetables”, the doctor said to her. ……………………………………… 14."Don’t shout”, I said to him. ……………………………………… 15."Shut the door but don’t lock it”, she said to us. ……………………………………… 16."Come and see me if you have time”, he said to us. ……………………………………… 17."Please help us”, they said to us.

Cho biểu thức P= . $\frac{3}{2x-1}$ Tìm tất cả các giá trị của x để P có giá trị nguyên.

mọi người giúp em nhanh với nha em đang cần

Giúp mình mấy câu thì hiện tại hoàn thành với

– Supply the correct word form. 1. People in my country are very warm and (friend) 2.An is a home for children whose parents are dead. (orphan) 3. L.A Hill is a writer. (humor) 4. I’m sorry for the delay. (extreme) 5. She looks more than her sister.(beauty) 6. They were very to survive a shipwreck.(luck) 7. I love the of summer evenings in the countryside. (peaceful) 8. Those cats look (love) 9. Bao is very kind and generous. (social) 10. Each of my friends has a character. (differ)