Знайдіть невідомий член пропорції: Х : ( - 6.4) = - 2.4 : 3/25. Created by anastasiyasolow. matematika-ru

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anastasiyasolow @anastasiyasolow

August 2022 1 7 Report

Знайдіть невідомий член пропорції: Х : ( - 6.4) = - 2.4 : 3/25

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prettypushkova

Verified answer

3/25 = 12/100 = 0,12
------------------------------
х : (-6,4) = (-2,4) : 0,12
х * 0,12 = (-6,4) * (-2,4) - свойство пропорции
0,12х = 15,36
х = 15,36 : 0,12
х = 128
--------------------------
Проверка:
128 : (-6,4) = (-2,4) : 0,12
- 20 = - 20
Вiдповiдь: 128 - невiдомий член пропорцii.

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anastasiyasolow August 2022 | 0 Ответы

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tri cilih odna chetverta 055 pyat cilih odna shostih shist cilih odn83337f402eacc8d69329f988e7c96eef 59449

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