Answered

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

Sagot :

Given

[tex]\frac{a+4}{2}<6.2[/tex]

Solution

[tex]\begin{gathered} \frac{a+4}{2}<\frac{6.2}{1} \\ \\ \text{cross multiply} \\ a+4<2\times6.2 \\ a+4<12.4 \\ subtract\text{ 4 from both sides} \\ a+4-4<12.4-4 \\ a<8.4 \end{gathered}[/tex]

The final answer is

[tex]a<8.4[/tex]

Option D

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