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1 year ago

Solving Inequalities

Mathematics

2 answers:

Zepler [3.9K]1 year ago

6 0

Answer:

n > 10

n < 9

Interval notation:

(-∞, 9) U (10, ∞)

Step-by-step explanation:

2n + 7 > 27 or 3 + 3n < 30

-7 -7 -3 -3

2n > 20 3n < 27

÷2 ÷2 ÷3 ÷3

n > 10 n < 9

<--------- ----------->

<---------0--------0--------->

9 10

I hope this helps!

dlinn [17]1 year ago

5 0

N > 10 and n > 9

Explanation:

1. 2n+7 > 27. Subtract 7 from both sides to get 2n > 20. Divide both sides by 2 to get n > 10.

2. 3+3n > 30. Subtract 3 from both sides to get 3n > 27. Divide both sides by 3 to get n > 9.

I hope this helps! :)

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