Exercise 1 Make indirect questions Example: Where do they come from? Do you know where they come from? - id1687997920200806 от умар53 06.08.2020 17:34

Question

Алгебра: Exercise 1 Make indirect questions Example: Where do they come from? Do you know where they come from? 1-What time did Carol arrive? Do you know 2-Where is the nearest bank? Can you tell me 3-Did Sally call her sister? Do you know 4-Can she speak French? Do you think 5-Does Mandy like fruit? Do you know 6-Why did Jim go to Italy? Can you tell me 7-Where is Sandy s car? Do you know 8-Were they tired last night? Do you think 9-Has Mike ever been to Paris? Do you think 10-Do they have a computer? Do

умар53 · Accepted Answer

Исходное число должно быть четырехзначным. Пусть исходное число будет ABCD=1000A+100B+10C+D. Из четырехзначного числа ABCD вычли сумму его цифр и получили 2016: 1000A+100B+10C+D-(А+В+С+D)=2016 Раскроим скобки и решим: 1000A+100B+10C+D-А-В-С-D=2016 999А+99В+9С=2016 Сократим на 9: 111А+11В+С=224 Очевидно, что 1 А 3, т.е. А=2 (2000). 111*2+11В+С=224  222+11В+С=224 11В+С=224-222 11В+С=2 С=2-11В, где С и В – натуральные положительные числа от 0 до 9. При значениях В от 1 до 9, С – отрицательное число....

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