Предмет: Математика, автор: aishat130706

В конверте лежат квадраты, круги и треугольники - всего 120. квадратов в 3 раза больше,чем треугольников и кругов ? сколько треугольников?

Ответы

Автор ответа: Victoria5251

квадраты-3х
круги и треугольники - х
всего - 120 шт.

3х+х=120
4х=120
х=120:4
х=30
30шт.- круги и треугольники.
30*3=90(шт.)-квадраты .

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