Велосипедист ехал а ч со скоростью 8 км/ч. Сколько километров проехал велосипедист за это время? Составьте выражение для решения задачи и найдите его значение при а = 1; 2; 4. Запишите выражение:
а) разность 35 + x и 81;
б) сумма 43 – 2a и b + 7;
в) произведение 3 – x и y: 4;
г) разность 25 – 3x и 57 + m.
Вычислите:
а) 154 – 3a, при a = 12;
б) 297 + 5b – 3, при b = 54;
в) 3a+ 5 + 4b – 1, при a = 3, b = 7.
I'd like to tell you about my mum. Mum is a main person in children's life.
My mum's name's Olga. She's forty years old but she looks younger. She's got green eyes and shoulder length brown wavy hair. My mum's rather tall but she's shorter than my dad.
My mum's a clever woman. She is a doctor and works in a hospital. She's really hardworking and patient. My mum is responsible.
My mum doesn't like sitting in front of a TV set in her free time. She's got several hobbies. For example, she likes skiing in the park in winter. If it is summer, she usually rides a bike. Also, she likes listening to music and writing poems.
I think my mum is thw best. I really love her.
I'd like to tell you about my mum. Mum is a main person in children's life.
My mum's name's Olga. She's forty years old but she looks younger. She's got green eyes and shoulder length brown wavy hair. My mum's rather tall but she's shorter than my dad.
My mum's a clever woman. She is a doctor and works in a hospital. She's really hardworking and patient. My mum is responsible.
My mum doesn't like sitting in front of a TV set in her free time. She's got several hobbies. For example, she likes skiing in the park in winter. If it is summer, she usually rides a bike. Also, she likes listening to music and writing poems.
I think my mum is the best. I really love her.