Вопрос школьника по предмету Математика
один поезд проходит расстояние между станциями за 26 минут а другой за 39. Через какое время они встретятся если выйдут Одновременно навстречу друг другу?
Ответ учителя по предмету Математика
1_26=1/26(пути)-пройдет первый поезд за 1 минуту
1:39=1/38(пути)- пройдет второй поезд за 1 минуту
1/26+1/39=5/78(пути)-пройдет вместе за 1 минуту
1:5/78=78/5=15 3/5=15,6(минуты)-потребуется 2 поездам, чтобы встретиться
15,6минуты=0,26часа
ответ:0,26часа, то есть 15,6 минуты.
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Martin Luther King, Jr.
Martin Luther King, Jr., was a black clergyman from Atlanta, Georgia. When King was a child, he (1)—— that black people and white people did not mix in public places. Black people sat in different (2)—— of restaurants and movie theatres. Black people sat at the back of the bus. Black and white children (3)—— to different schools. This kind of separation is called segregation. King loved to study. He was a good student and went to college at a (4)—-age. He was only fifteen years old. When he finished college, he began to fight segregation. He did not believe in (5)——. He believed in peace. He helped black people to protest in peace. They went on marches in peace. King also wanted equality for (6)——-.
He wanted black and white men and women to have an equal chance in the United States. This is called the civil rights movement. In 1963 King was the leader of the civil rights march on Washington, D.C.
Thousand of people (7)——to his famous speech. It begins, «I have a dream.» In 1964 Martin
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1. A learned В found out С read D saw
2. A places В tables С parts D rows
3. A studied В left С finished D went
4. A retiring В young С little . D early
5. A friendship В love С loyalty D violence
6. A nobody В all С everybody D anybody
7. A listened В watched С heard D discussed
8. A winner В person С student P participant
9. A earth В planet С country D world
10. A traditional В favourite С national D popular