Question

A+4 -------- < 6.2 2a > 8.4a > 4.8a < 4.8a < 8.4

Answer 1

Given

`(a+4)/(2)<6.2`

Solution

`\begin{gathered} (a+4)/(2)<(6.2)/(1) \\ \\ \text{cross multiply} \\ a+4<2*6.2 \\ a+4<12.4 \\ subtract\text{ 4 from both sides} \\ a+4-4<12.4-4 \\ a<8.4 \end{gathered}`

The final answer is

`a<8.4`

Option D