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mrart200217artmca
@mrart200217artmca
August 2022
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решите пж я правило не нашло 2х/3=4/9. 3х/5=9/10. 1/8=3/2х 8/15=6х/9 1/8=3/2х 2/12=15/9х. 12/13=18х/39
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Micromacro
Крест накрест решаются все..
2x/3 = 4/9
18x = 12
x = 12/18 = 2/3 -- Ответ
3x/5 = 9/10
30x = 45
x = 45/30 = 1 целая 15/30 = 1.5 - Ответ
1/8 = 3/2x
2x = 24
x=12 - Ответ
8/15 = 6x/9
90x = 72
x = 0.8 Ответ
1/8 = 3/2x
2x = 24
x=12 - Ответ
2/12 = 15/9x
18x = 180
x=10 Ответ
12/13 = 18x/39
12 *39 = 13 * 18x
18x = 12*39/13
18x = 36
x=2 Ответ
0 votes
Thanks 1
SAM73
2х.3=36
6х=36:6
x=6
3x.5=90
15x=90
x=90;15
x=6
0 votes
Thanks 0
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Answers & Comments
2x/3 = 4/9
18x = 12
x = 12/18 = 2/3 -- Ответ
3x/5 = 9/10
30x = 45
x = 45/30 = 1 целая 15/30 = 1.5 - Ответ
1/8 = 3/2x
2x = 24
x=12 - Ответ
8/15 = 6x/9
90x = 72
x = 0.8 Ответ
1/8 = 3/2x
2x = 24
x=12 - Ответ
2/12 = 15/9x
18x = 180
x=10 Ответ
12/13 = 18x/39
12 *39 = 13 * 18x
18x = 12*39/13
18x = 36
x=2 Ответ
6х=36:6
x=6
3x.5=90
15x=90
x=90;15
x=6