I know this won't sound helpful, but search up the answers for ALL of them. And, obviously, do it QUICKLY!
Answer:
C would be the correct number line
Step-by-step explanation:
5x ≥ - 17 - 3
5x ≥ -20
5x/5 ≥ -20/5
x ≥ 4
Going by the formula, Half-Life = ln(.5) / k
Half-Life = .693147 / .1205
Half-Life = 5.75 days and rounded to nearest tenth,
Half-Life = 5.8 days
Let
Ben's age
Let
Daniel's age
We know:
and
Plug the value of
into the second equation:
Since Ben is 20 years older than Daniel, Ben is 13+20=33 years old.
To do this problem you use is/of=percent/100
So:
320/750=x/100
cross multiply
32,000=750x
divide both sides by 750
x=42.66 repeating
ANSWER: X=42.66 REPEATING