Предмет: Математика, автор: vikakulba

таня прочитала 120 страниц книги что составило 75% всей книги. сколько страниц в книге?

Ответы

Автор ответа: sashkaplay

120×100÷75 = 160
Ответ 160

БРОТЕЛО: 120/100=1.2 ( 1 ПРОЦЕНТ) 1.2*75=90 ПРОЧЕЛ 120-90=30 ОСТАЛОСЬ

БРОТЕЛО: 75%=0,75
120:0,75=160(стр.)-в книге.
Ответ: 160 страниц.

sashkaplay: 120 - 75% х - 100%

Автор ответа: lol1119

Ответ:160 _______________

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