Mn lm bài 1 giúp mik vs . Thanks tr

Tìm x và y: $\frac{x}{2}$ = $\frac{y}{3}$ và $\frac{x}{5}$ = $\frac{z}{4}$ và x+y-z=10

a,-x ²+2x phân tích đa thức thành nhân tử

Viết lại câu từ trực tiếp -> gián tiếp 79. “ Is the food in the restaurant good ?”The tourist asked 80. “ Are you going to visit your okd teacher ? ”Minh asked Hoa 81. “ Will you be in HaNoi in the future ? ” She asked us 82. “ Do you have any plans to learn English ?”The teacher asked me 83. “ I’ll meet your father tomrrow, Nam” The teacher said 84. “ We do our homework everyday ” They said 85. “ You are my friend ” Nga said to Minh 86. “ Your father is a hard worker ” the man said 87. “ What is your name ?” She asked me 88. “ How old are you ?” She asked me

Khi quạt hoạt động, phần năng lượng nào biến đổi thành điện năng có ích, là vô ích? Nếu hiệu suất của quạt là 85%, tỉ lệ giữa năng lượng có ích và năng lượng hao phí là bao nhiêu?

Ai giải giúp mình chuẩn với ạ. mình đang cần gấp

Viết lại câu, từ trực tiếp -> gián tiếp 71. “Do as I tell you or you’ll be punished. I’ll teach you who is the master in this house” he said 72. I ask Bill “What time did you go to bed last night ?” 73. “What a lovely garden they have !” he said 74. “Would you like to drink some beer” He said to me 75. “Your father shouldn’t smoke too much” I told him 76. “I have left my watch at home. Can you tell me the time ?” said Nam to Nga 77. Tom said “you had better not contact to her” 78. “ Does your father live here ? ”Nam asked Lan

Giải hộ em vs ạ em sẽ cho 5 sao ạ

She/think/this broblem/care/before/she explain/it

Viết lại câu từ trực tiếp -> gián tiếp 61. Tom said “New York is bigger than London” 62. “Please help us” they said to us 63. Tom said to me “Don’t forget to send your parents my regard” 64. The traveler asked “How long does it take to get to London ?” 65. John said “I have finished studying my lesson” 66. Mary said “I cannot go to the movies with you, John” 67. “I shouldn’t do that if I were you. Isn’t it very dangerous ?” he said 68. “When we’ve finished this we’ll have supper” they said to me 69. “Have you got any shampoo, Alice. I must wash my hair” Johnny asked 70. He said to me “Listen! Can you hear something coming?”