Question

PLEASE HELP!
A set of numbers is shown below:

{0, 0.8, 1, 3, 6}

Which of the following shows all the numbers from the set that make the inequality 7x + 1 ≥ 8 true?
A: {1, 3, 6}
B:{3, 6}
C: {0, 0.8, 1}
D:{0, 0.8}

Answer 1

@Astrophysics please help

Answer 2

Plug in the numbers you're given in the set of numbers for x, and if the left side is indeed > or = to 8 then that's part of the set.

Answer 3

I don't get it?

Answer 4

For example, I'll do the first one for you, you are given the set {0, 0.8, 1, 3, 6} and you have your inequality, so lets take 0, and plug it in for x in the inequality \[7(0)+1 \ge 8 \implies 1 \ge 8\] so this is not true, therefore it's not in your set and we can knock off two of the answers from your choices.

Answer 5

so its A or B

Answer 6

@Astrophysics

Answer 7

Yeah..so do what I asked you to

Answer 8

A