Question

which inequaltiy doe NOT have the solution {x|x>5}?
a. -4x<-20
b.6x<30
c. 1/4x> 5/4
d. -3/5x<-3

Answer 1

For a) take

-4x < -20

divide both sides by negative 4 (remember to change the sign0

x > 5

It is not a. What did you get for b?

Answer 2

x<5

Answer 3

And the answer for b is match or not match?

Answer 4

does x < 5 match x > 5? Yes? No?

Answer 5

no

Answer 6

nice job!