Question

[nguyễn tất nguyễn thị tất]

Tìm y:

Y x 3,5 = 22,19
48,3 - Y x 2,8 = 30,716
Y : 5,7 - 5,6 = 12,5

Answer 1

[Akai Haruma]

Lời giải:

$y\times 3,5=22,19$

$y=22,19:3,5=6,34$

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$48,3-y\times 2,8=30,716$

$y\times 2,8=48,3-30,716=17,584$

$y=17,584:2,8=6,28$

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$y:5,7-5,6=12,5$

$y:5,7=12,5+5,6=18,1$

$y=18,1\times 5,7=103,17$