Предмет: Математика, автор: kamilovadam

Номер 484 486 плиз не объязательно все хоть один номер

Приложения:

Ответы

Автор ответа: belcatya

485
0,62-3,4+45,25:25=2,176+1,81=3,986
19,6:1,6-0,85*4,4=12,25-8,14=4,11

486
5+7=12 частей плодов в витаминном сборе
0,6:12=0,05кг - одна часть сбора
5 частей - 5*,05=0,25кг - шиповника
7частей - 7*0,05=0,35кг - боярышника
Ответ:
0,25кг - шиповника
0,35кг - боярышника

488
длина проволоки = периметру треугольника=7,5+8,3+9,4=25,2

периметр квадрата равен P=4a⇒ a=P/4 = 25.2/4=6.3 см
Ответ: сторона квадрата =6,3см

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