a)75, 4/47 × 18,15/16 - 75,4/47×17,15/16= (18,15/16-17, 15/16)×75, 4/47=1×75,4/47=75,4/47.
б)(4, 1/2- 3/4× 15/17)²+1/6=
1)3,4×15/17=3, 4/10 × 15/17= 34/10 × 15/17= 2/2×3/1= 1×3=3
2)4, 1/2 - 3= 1, 1/2. (1.5)
4)2.25+ 1/6= 2, 25/100+1/6= 2, 1/4 + 1/6= 9/4+1/6=54/24+4/24= 58/24=29/12=2, 5/12
3х=18 х=18: 3 х=6
б)х-2, 1/8= 3, 1/20
х=2, 1/8+3, 1/20
х=5, 1/8+1/20 1/8+1/20=10/80+4/80=14/80=7/40
the weather is a subject we can always talk about. it often changes arid brings cold and heat, sunshine and rain, frost and snow. one day is often unlike the next.
in summer the sun shines, often there is no wind and there are no clouds in the sky which is blue and beautiful. we can see stars and the moon at night and people like walks, outdoor games and sports in the fresh air.
when autumn comes, the days become shorter and colder. it gets dark earlier and often heavy clouds cover the sky bringing rain with them. sometimes there is heavy rain, so that an umbrella or a raincoat is necessary if we don't want to get wet through. then you can hear people say, "what bad weather! when is this rain going to stop? " many people then catch cold and must go to bed. then a fire at home is so pleasant.
at last frost and snow come. fields, forests and houses are covered with snow and rivers and lakes with ice.
but spring again brings sunshine and warm winds. sometimes it snows but snow will not remain long, it will melt in the warm sun." spring will bring bright sunshine, green grass and flowers.
we usually say: "a nice day", "not a bad day" or "it's nice weather for the time of the year" if the weather is fine. we can say: "it looks like rain", "it looks like snow" or "it's bad weather" when the weather is bad.
вот на : моего друга любим ходить к друг другу в гости, гулять в парке.мой друг мне с , а я ему.я хочу быть похожим на него мой друг, самый лучший друг на свете потому что с ним весело и хорошо, мы друг другу дарим подарки на праздники и рассказываем новости какие произошли с нами дома, на улице, в школе и в кружках. мне нравится свой лучший друг!
вот на : my friend very much like to go to each other at home, walk in парке.мой friend help me with my homework, and i ему.я want to be like him my friend, the best friend in the world because it is fun and well, we are each other giving gifts for the holidays and tell the news of what had taken place with us at home, on the street, at school and in the clubs. i like his best ! ( только вот про знаки пепинания я не знаю правильно или нет )