Вопрос школьника по предмету Математика
с решением!
Собственная скорость лодки 3,2 км/ч, скорость течения реки 2,3 км/ч. Какова скорость лодки по течению реки и против течения?
Ответ учителя по предмету Математика
Ответ:
1)3,2+2,3=5,5(км/ч)-скорость по течению.
2)3,2-2,3=0,9(км/ч)-скорость против течения.
Ответ:5,5км/ч по течению. 0,9км/ч против течения.
Пошаговое объяснение:
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1. Sport is popular … young and old people. 2. … P.T. lessons schoolchildren play … volley-ball, … basket-ball. 3. People play … different games, swim, ski, skate, jog … the stadiums and sport- complexes just … pleasure. 4. Many people listen … sports news or read … them in newspapers. 5. The most popular winter outdoor sports … our country are skiing, skating and ice hockey. 6. Many people take part … different kinds … competitions.
V. Make underlined sentences negative.
Sport plays a very important role in our life.
They take part in different kinds of competitions and Olympic Games.
They do morning exercises and spend a lot of time out of doors because they take care of their health.
In schools and colleges physical training is a compulsory subject.
The most popular winter and summer outdoor sports in our country are track — and — field, skiing, football, skating, ice hockey, shooting.
VI. Ask questions to the underlined words.
Going in for sports makes people more organized. 2. They take part in different kinds of competitions. 3. At P.T. lessons schoolchildren play volley-ball, basket-ball or other sports games. 4. They do morning exercises and spend a lot of time out of doors because they take care of their health. 5. Sport helps people to keep fit.