Question

can someone explain this problem to me and how to solve it

A set of numbers is shown:

{0, 1.5, 2.8, 6, 12, 18}

Which of the following shows all the numbers from the set that make the inequality 3x + 3 ≥ 21 true?

{12, 18}
{6, 12, 18}
{0, 1.5, 18}
{0, 1.5, 2.8}

Answer 1

Wat I would do is start off with a couple of numbers and if those numbers make the inequality true then I would cross out the answers that don't have those particular numbers

Answer 2

FIRST solve/simplify the inequality. ie reduce the >= down to a simple statement that x >= something ....... using normal algebraic manipulation.

Answer 3

so a is right

Answer 4

or {12, 19}

Answer 5

I would actually say that the answer is B.
But u were quite close

Answer 6

ok i see thx for helping

Answer 7

Ur welcome
((thumbsup))