Question

[Du Duc Thang]

A,  25 < y - 15 <26

B,. 64 > y + 35 > 62

Answer 1

[Hoàng hôn ( Cool Team )]

a) 25 < y - 15 < 26

=> 25  - 15 < y - 15 < 26 - 15

=> 10 < y < 11

=> \(x\in\left\{10,1;10,2;10,3;10,4;10,5;10,6;10,7;10,8;10,9\right\}\)

b) 64 > y + 35 > 62

=> 64 + 35 > y + 35 > 62 + 35

=> 99 > y > 97

=> y = 98

Vậy y = 98

Answer 2

[wattif]

B,. 64 > y + 35 > 62

<=>y+35=63

<=>y=63-35=28

Vậy y=28