Question

Solve 3n + 11 < 17 or -3n > 12. Which is the best description of the solution set?
A. n < 2 or n > -4
B. n < 2 or n < -4
C. n < 2
D. n < -4

Answer 1

please stop posting rapidfire questions unless you want to actually engage and learn. :-)

Answer 2

you know.. many people do it. please go tell them that. perhaps you dont need to say anything if you dont want to.

Answer 3

I do tell them that. That's why I'm telling you too.

Answer 4

mmhhhmm k well then dont help me.. either way people are still gonna do it. im not starting anything on hear. all u think is im getting aswers when im actually learning how u get those answers

Answer 5

let's work on this one together. Start with 3n + 11 < 17. What do you get when you subtract 11 from both sides?

Answer 6

give her a moment to work on it merts.

Answer 7

The compound sentence you are asked to solve is a disjunction. Solve the first part by subtracting 11 from both sides and then dividing by 3.

Answer 8

2

Answer 9

I'm not sure how you got 2 - can you explain?

Answer 10

Oh - wait, you went the next step and divided by 3 also I guess? That's good, so now let's do the other half. -3n > 12. What happens when you divide by -3?

Answer 11

u get -4

Answer 12

right, what does the whole inequality say, including the "n"?

Answer 13

its b

Answer 14

almost. The two inequalities overlap. how does that affect the answer?

Answer 15

im not quit sure wat yer saying?

Answer 16

well it can be n < 2 or n < -4. But anything that's less than -4 is also less than 2 -- one of the conditions ends up being redundant and can be removed.

Answer 17

ok

Answer 18

do you know which?

Answer 19

its a

Answer 20

it's C. since the two statemets are joined by "or", you can pick the more permissive of them, so it's just n < 2.

If it had said "AND", then it would be D (n < -4), the more restrictive of the two.

Answer 21

ok thanks:)

Answer 22

:)