20/1.04 = 19.60$
20.00$-19.60 = 0.40$ in change.
Answer:
20y+26
Step-by-step explanation:
4(7y+5)-2(4y-3) < Distribute 4 and -2 into the parenthesis
28y+20-8y+6 < Add all like terms
28y-8y= 20y; 20+6= 26
28y+26
Hope that helped!
Answer:
option A. Values greater than 1
Step-by-step explanation:
5 - 2x < 3
5 - 3 < 2x
2 < 2x
1 < x
The decay formula is
N(t) = N₀ exp(-kt)
where
N₀ = 45 g, original mass
N(t) = mass after time t, days
k = 0.1109, the decay constant.
At half life, N(t) = (1/2)*N₀. Therefore
1/2 = exp(-0.1109t)
Take natural log of each side.
ln(0.5) = -0.1109t
t = ln(0.5)/(-0.1109) = 6.25
Answer: 6.3 days (nearest tenth)
Answer:
Step-by-step explanation: