Question

Please help me fast and thank you if you do

Answer 1

8 > u > 6

Explanation:

We have to solve this inequality as 2 separate inequalities.

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Inequality 1 :

⇒ 10 > 5u/4

⇒ 5u < 10 × 4

⇒ 5u < 40

⇒ u < 8 [Box 1]

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Inequality 2 :

⇒ 5u/4 > 15/2

⇒ 5u/2 > 15

⇒ u/2 > 3

⇒ u > 3 × 2

⇒ u > 6 [Box 2]

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Solution :

⇒ 8 > u > 6