Question

Help

Answer 1

@Michele_Laino

Answer 2

starting from inequality: \(8<2b\) I can divide both sides by \(2\) so I can write this:
\[\frac{8}{2} < \frac{{2b}}{2}\]
please simplify

Answer 3

How? :3

Answer 4

what is 8:2=...?

Answer 5

what does ":" mean?

Answer 6

I mean 8 divided by 2

Answer 7

4

Answer 8

ok! now, what is 2/2=...?

Answer 9

1

Answer 10

ok! so that inequlity is equivalent to this one:
\(4<b\), which caqn be rewritten as below:
\(b>4\)

Answer 11

inequality*

Answer 12

so then that would be it?

Answer 13

oops.. can*

Answer 14

please wait, we have to rewrite the second your inequality: \(2b+15<5\)

Answer 15

Oh

Answer 16

If I subtract 15 to both sides I get:
\(2b+15-15<5-15\) please simplify

Answer 17

How would I simplify that?

Answer 18

keep in mind...since there are no equal signs in your inequalities, that means that the circles are open....that will automatically eliminate 2 of them

Answer 19

what is: 15-15=...? and what is 5-15=...?

Answer 20

0 and -10?

Answer 21

ok!

Answer 22

:D

Answer 23

what do you do with the 2b?

Answer 24

so we get:
\(2b<-10\)
now I divide both sides by 2, so I write this:
\[\frac{{2b}}{2} < \frac{{ - 10}}{2}\]

Answer 25

what is 2/2=...? and what is -10/2=...?

Answer 26

hint:
we get
\(b<-5\)

Answer 27

so your set is represented by these inequalities:
\(b>4\) \(or\) \(b<-5\)