2 years ago

Slove for x Show all work

1 answer:

6 0

Answer:

x=15

Step-by-step explanation:

$18^2=12(x+12)\\\\324=12(x+12)\\\\323=12x+144\\\\\cfrac{180}{12} =\cfrac{12x}{12} \\\\x=15$

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Answer:

The substance's half-life is 6.1 days.

Step-by-step explanation:

The half-life of the substance can be calculated by knowing the constant decay:

$t_{1/2} = \frac{ln(2)}{k}$

k: is the decay constant = 0.1133 d⁻¹

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