Question

If m 2 n, which inequalities must be true? Check all that apply.

Om + 2.1 > n + 2.1
m - (-4) 2 n-(-4)
m + 3 n-3
16.5 + m > 16.5 + n
1
U
m 2 n +
U
9 + m > 6+n

Answer 1

A,B,D

Explanation:

Answer 2

`(a)\ m+ 2.1 > n + 2.1`

`(b).\ m - (-4) > n - (-4)`

`(c)\ 9 +m> 6 + n`

Explanation:

Given

`m > n`

Required

Select true inequalities

`(a)\ m+ 2.1 > n + 2.1`

Subtract 2.1 from both sides

`m > n`

This is true

`(b).\ m - (-4) > n - (-4)`

Open brackets

`m + 4 > n + 4`

Subtract 4 from both sides

`m > n`

`(c)\ 9 +m> 6 + n`

`m> -9+6 + n`

`m> n-3`

This is also true