Найдите число 1) 1-9 2) 2-5 3) 3-9 4) 3-10 5) 5-6 6) 18-19 его рав...

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Найдите число 1) 1-9 2) 2-5 3) 3-9 4) 3-10 5) 5-6 6) 18-19 его равняется 90.
Это обыкновенные Дроби 5 Класс помогите срочно

Answers & Comments

nellika01 1) х -число
1/9х=90
х=90*9
х=810

2) 2/5х=90
х=90*5/2
х=225

3)3/9х=90
х=90*9/3
х=270

4)3/10х=90
х=90*10/3
х=300

5) 5/6х=90
х=90*6/5
х=108

6)18/19х=90
х=90*19/18
х=95

3 votes Thanks 6

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mashina proehala 1526km za 28ch skolko kilometrov ona proedet za 42ch s toj zhe5741464e4590fb9732b08ffb44dee51f 91401

rashod emalevoj kraski na odnoslojnoe pokrytie sostavlyaet 180 g na 1 m2 hvatit la051330283f0e0dd7328495b2686d3b8 8760

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