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

Remember that when you divide by a negative, the inequality flips.

So -3n > 12 => n < -4.

That elliminates all but 2 possibilities. :)

Answer 2

\[3n+11<17\]
\[3n<6\]
\[n<2\]
or
\[-3n>12\]
\[n<-4\]

Answer 3

OR means one or the other or both, so
\[n<2\]

Answer 4

so c or d?

Answer 5

c

Answer 6

because if you are less than -4 you are certainly less than 2

Answer 7

oh.

Answer 8

that is the set of numbers less than -4 is contained in the set of numbers less than 2

Answer 9

again in math OR means one or the other or both.

Answer 10

how c?

Answer 11

for example 1 is not less than -4 but 1 IS less than 2, so the statement 1 is less than -4 OR 1 is less than 2 is a true statement.

Answer 12

ooooooh thx i get it alote better now :)

Answer 13

if the question said AND rather than OR you would have to pick d

Answer 14

good!