Asked by ...
solve the inequality:
-3(r-4) ≥ 0
-3(r-4) ≥ 0
Answers
Answered by
oobleck
another of these?
where do you get stuck?
where do you get stuck?
Answered by
...
i just dont understand it
Answered by
oobleck
you can follow the steps Reiny showed you.
Can you solve
3x ≥ 0 ??
If so, then find x, and then let x = r-4 and then find r.
Can you solve
3x ≥ 0 ??
If so, then find x, and then let x = r-4 and then find r.
Answered by
...
Is the answer r≥-4
Answered by
oobleck
nope. If r=5,
-3(5-4) = -3 which is not ≥4
when you multiply an inequality by a negative value, you change the direction of the inequality. So, the correct answer is r≤4
-3(5-4) = -3 which is not ≥4
when you multiply an inequality by a negative value, you change the direction of the inequality. So, the correct answer is r≤4