Answer:
d=2.25t
Step-by-step explanation:
The amount remaining (Q(t)) can be expressed in terms of the initial quantity Q₀ and the number of days (t) by
Q(t) = Q₀×0.82^t
Filling in the given numbers, you have
13 = Q₀×0.82^11
13/0.82^11 = Q₀
Q₀ ≈ 115.34 . . . . milligrams
Answer:
7 = x
Step-by-step explanation:
7 - 2x = x - 14
7 + 14 = x + 2x
21 = 3x
7 = x
Hope this helps!