Предмет: Математика, автор: Аноним

Масса детеныша моржа в 9 раз меньше массы взрослого моржа. Какова масса взрослого моржа,если вместе с детенышем их масса равна 0,9 тонн?

Ответы

Автор ответа: LolaJola

детеныш - × Морж - 9× Тогда: 9х + х = 0,9 упростим: 10х= 0,9 х = 0,9 ÷ 10 х= 0,09 0,09 - масса детеныша 2) 0,09×9 = 0,81- масса моржа

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