Question

Can anyone tell me if answer D is correct? Picture is attached.

Answer 1

yes

Answer 2

good job... all are correct

Answer 3

All are correct?

Answer 4

yes

Answer 5

what does that mean? I didn't do all of those. One of them is correct, the rest aren't.

Answer 6

sorry i misread the question

Answer 7

Can you look at it and tell me what you think..

Answer 8

when i solve i get -30 > k

Answer 9

and that gives me A .. do u agree?

Answer 10

hmm, recall that with inequalities, when you multiply/divide/exponentialize by a NEGATIVE value, you have to \(\bf \text{flip}\) the sign

Answer 11

So then A?

Answer 12

\(\bf 10 > \cfrac{k}{-3}\\
\textit{times -3 on both sides}\\
-3 \times 10 > \cfrac{k}{-3} \times -3\\
-30 \qquad \color{red}{\square ?} \qquad k\)

Answer 13

we used a -3, thus a negative value, thus our > will turn to a <

Answer 14

A looks good then :)

Answer 15

yes