The decay rate should have units, it should be negative and it should be 100 times smaller than what you posted.
k = -.000124 / years
k = -.000124 / years
Half-Life = ln (.5) / k
Half-Life = -.693147 / -.000124
Half-Life =
<span>
<span>
<span>
5589.8951612903
</span>
</span>
</span>
Half-Life =
5,590 (rounded)
elapsed time = half-life * log(bgng amt / end amt) / log(2)
elapsed time = 5,590 * log(10) /
<span>
<span>
<span>
0.3010299957
</span>
</span>
</span>
elapsed time = 5,590 * 1 / <span>
<span>
0.3010299957
</span>
</span>elapsed time =
<span>
<span>
<span>
18,569 years
</span></span></span>Source:
http://www.1728.org/halflife.htm
Answer:
For this case we can make the following rule of three:
25% ----------------> 2 $
100% --------------> x
From here, we clear the value of x.
We have then:
Therefore, the value of the Taco that Andrea bought, before the tip, is $ 8.
the price of Andrea's tacos, before tip is $ 8.
100 sweet snack, if it is 5:1 ratio than there’s 5 times the amount of salty snacks
Answer:
0.108
Step-by-step explanation:
Using the poisson probability process :
Where :
P(x =x) = (e^-λ * λ^x) ÷ x!
Given that :
Each batch of bread = 3 loaves
Each loaf = 15 slices
Total slice per batch = 15 * 3 = 45 slices
Number of raising added = 100
Average number of raisin per slice, λ = 100/45 = 20/9
Hence,
Probability that a randomly chosen slice has no raising :
P(x = 0) = (e^-λ * λ^x) ÷ x!
P(x = 0) = (e^-(100/45) * (100/45)^0) ÷ 0!
P(x = 0) = (0.1083680 * 1) / 1
P(x = 0) = 0.108
Answer:
The total cost of the lunch including the tip is $15.21.
Step-by-step explanation:
To find the total cost of the lunch including the tip, first, you need to calculate 17% of the price of the lunch as the statement indicates that that is the tip Joseph leaves the waiter:
$13*17%=$2.21
Now, you need to add that amount to the price of the lunch:
$13+$2.21=$15.21
According to this, the answer is that the total cost of the lunch including the tip is $15.21.
