Answer:
p - 3
Step-by-step explanation:
It will take 7.5 hours for only 40% of the caffeine to remain in his body.
Step-by-step explanation:
Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half of its initial value.
The half-life of caffeine is 5.7 hours.
It means that if we have 10 ounces of caffeine. After 5.7 hours, the remaining caffeine will be equal to 5 ounces and so on.
And the decaying speed depends on the initial amount of the substance.
In the given question.
t1⁄2 = 5.7 hours
Initial amount = N(i) = 16 ounces
Remaining amount after time t = N(t) = 40% of 16 = 6.4 ounces
time t = ?
Using the following formula for remaining amount of substance after time t:
N(t) = N(i)*(0.5)^(t/t1⁄2)
we can find the time t
putting the values in the formula given above, we get:
Taking natural log on both sides:
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Answer:
4v + 9 or 9 + 4v
Step-by-step explanation:
increased means plus
the product of is multiplication
im too tired to explain annything else
gn bro
Answer:
8.2
Step-by-step explanation:
509.056/62.08
Answer:
27
Step-by-step explanation:
3.5x6= 21
you would do 3.5x6 because they scored 3.5 each so then all together its 21 and 48-21=27 so Veronique scored 27 points