Question

Find the solution set for the given inequality if the replacement set is {1, 2, 3, 4, 5, 6}.

3x – 5 ≥ 7

A.
{1, 2, 3, 4}

B.
{1, 2, 3}

C.
{4, 5, 6}

D.
{5, 6}
@forgiveness

Answer 1

Substitute all the numbers in the answers

Answer 2

Okay, this may take a while, I'll check them all.

Answer 3

When you substitute 1, you end up with:

3 x 1 - 5

3 - 5

-2

Answer 4

So 1 doesn't work

Answer 5

So only C and D

Answer 6

Yes, but C gives more data.

Answer 7

C would be the better answer. Good Job!

Answer 8

Okay! Just 2 more and we're all done.

Answer 9

\[3x-5\ge7\]
\[3x \ge7+5\]
\[x \ge \frac{ 12 }{ 3 }\]
\[x \ge 4\]
solution is ?