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Математика, опубликовано 09.01.2019 16:01

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Ответ оставил: Гость

on monday, feb. 7, the mandarin chinese 3/4 class hosted a group of six foreign exchange students and three teachers from beijing, china. the chinese class spent lunch with the exchange students and their chaperones in the cafeteria to allow them to experience a typical american school day lunch. after spending the lunch period conversing in both mandarin chinese and english to learn more about both the  american and the chinese cultures, the chinese class invited the exchange students to  its classroom.

during class, both the  san ramon  students and the exchange students were given the chance to ask each other questions about the different cultures.  the  san ramon  students learned that a typical school day in china lasts from  8: 00 a.m. to  5: 00 p.m., with seven classes a day. although their school day might seem to be too long, they do have a two-hour long lunch break. while on the topic of lunch,13 year-old exchange student mary stated that she “like[s] american food, but i like chinese food best! ”

the six students were given the opportunity to visit the bay area through the cultural exchange program encounters after winning a drama competition a few months ago. while programs run by encounters do not usually visit local schools, this small group was able to visit san ramon because two of the students were being hosted by chinese 3 student  ryan pearce (12) and his family for two nights. in addition, because this group won the grand prize to visit, their trip was only ten days, rather than the usual three-week program. while their trip was shorter, they were still able to visit local colleges, such as uc berkeley and stanford, and go on tours to historical landmarks.

Ответ
Ответ оставил: Гость
Думаю будет так 
3 frac{3}{25} *4= frac{78}{25}*4= frac{78*4}{25} = frac{312}{25}
Ответ
Ответ оставил: Гость
(50-19*2):2=(50-38):2=12:2=6см - ширина
проверка Р=(19+6)*2=50см
Ответ
Ответ оставил: Гость
Чему равна сумма 2-х сторон?
48:2=24(см)
Чему равна меньшая сторона?
24:3=8(cм)
Чему равна большая сторона?
24-8=16(см)
Чему равна площадь прямоугольника?
8*16=128(см^2)


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