Предмет: Математика, автор: LayaBurnel

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Автор ответа: elenacybulina68
1

Ответ:

2) 350÷100%×14%=3,5×14%=49

700÷100%×6%=7×6%=42

3) 32%=640

640÷32%×100%=20×100%=2000

4)

прочитали 15%

осталось прочитать 170стр.

всего-?стр.

100%-15%=85% осталось прочитать

170=85%

170÷85×100%=2×100%=200

ответ в книге 200 стр.

5) =5,1х-10,2-3,6х+6=1,5х-4,2

LayaBurnel: спасибо вам большое
elenacybulina68: успехов!!!
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