Вопрос школьника по предмету Математика
Если В некоторой десятичной дроби перенести запятую влево через одну цифру то она уменьшится на 23,76 Найдите эту дробь
Ответ учителя по предмету Математика
х — искомая дробь
0,1х — уменьшенная дробь
х-0,1х=23,76
0,9х=23,76
х=23,76:0,9
х=26,4
Ответ: это дробь 26,4
проверка
26,4-2,64=23,76
23,76=23,76
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