Question

Plz help me get the answer

Answer 1

Answer:

b ≤ -15

Step-by-step explanation:

$\dfrac{-1}{3}b\geq5\qquad\text{change the signs}\\\\\dfrac{1}{3}b\leq-5\qquad\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup^1\cdot\dfrac{1}{3\!\!\!\!\diagup_1}b\leq(3)(-5)\\\\b\leq-15$