Ответ:
Пошаговое объяснение:
√136
1)
(3у-7):5=33:15.
15*(3y - 7) = 33*5
45y - 105 = 165
45y = 165 + 105
45y = 270
y = 270 : 45
y = 6
2)
35:(21-5у)=5:2
5*(21-5y)=35*2
105 - 25y = 70
25y = 105 - 70
25y = 35
y = 35 : 25
y = 1,4
3)
64:72=(7у+3):9
72*(7y+3)=64*9
504y + 216 = 576
504y = 576-216
504y = 360
y = 360:504
y = 5/7
4)
53:4=212:(6у-8)
53*(6y-8)=212*4
318y-424=848
318y = 848 + 424
318y = 1272
y = 1272 : 318
y = 4
√137
11у/20=16:80
80*11y = 20*16
880y = 320
y = 320:880
y = 4/11
5,1:8,7=34у/29
8,7*34y = 29*5,1
295,8y = 147,9
y = 147,9:295,8
y = 0,5
7,2:2,7=32у/3
2,7*32y = 7,2*3
86,4y = 21,6
y = 21,6 : 86,4
y = 0,25
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Answers & Comments
Ответ:
Пошаговое объяснение:
√136
1)
(3у-7):5=33:15.
15*(3y - 7) = 33*5
45y - 105 = 165
45y = 165 + 105
45y = 270
y = 270 : 45
y = 6
2)
35:(21-5у)=5:2
5*(21-5y)=35*2
105 - 25y = 70
25y = 105 - 70
25y = 35
y = 35 : 25
y = 1,4
3)
64:72=(7у+3):9
72*(7y+3)=64*9
504y + 216 = 576
504y = 576-216
504y = 360
y = 360:504
y = 5/7
4)
53:4=212:(6у-8)
53*(6y-8)=212*4
318y-424=848
318y = 848 + 424
318y = 1272
y = 1272 : 318
y = 4
√137
1)
11у/20=16:80
80*11y = 20*16
880y = 320
y = 320:880
y = 4/11
2)
5,1:8,7=34у/29
8,7*34y = 29*5,1
295,8y = 147,9
y = 147,9:295,8
y = 0,5
3)
7,2:2,7=32у/3
2,7*32y = 7,2*3
86,4y = 21,6
y = 21,6 : 86,4
y = 0,25