60.3k views
3 votes
The number -2 is a solution to which of the following inequalities?

-3x < 1
x - 7 < -4
-12/x> 10
x + 7 > 5

User Shlgug
by
9.5k points

2 Answers

5 votes

Answer: x - 7 < -4

Explanation:

x - 7 < -4, plug in the -2.

-2 - 7< -4, simplify; -2+-7=-9

=- 9<-4

User Pieterjan
by
8.7k points
3 votes

Substitute the value of x = -2 to the inequalities:


-3x < 1

(-3)(-2) < 1

6 < 1 FALSE


x - 7 < -4

-2 - 7 < -4

-9 < -4 TRUE


-12/x > 10

-12/(-2) > 10

6 > 10 FALSE


x + 7 > 5

-2 + 7 > 5

5 > 5 FALSE


Answer: x - 7 < -4

User Phastasm
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories