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3 years ago

What could be the rule ?

Mathematics

2 answers:

MissTica3 years ago

8 0

Answer:

Divide by 3

Step-by-step explanation:

Sonbull [250]3 years ago

4 0

Answer:

Sub. 10

<h2>Step-by-step explanation: <em>input is 15 and output is 5, So i would say 15-10= 5 I would think the rule is Subtract 10, im Guessing not for sure tho! :D</em></h2>

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Step-by-step explanation:

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2 years ago

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3 years ago

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2 years ago

A certain compound has a half-life of four days. Write and use an exponential decay function to find the amount of compound rema

dimaraw [331]

Answer:

1.97 ounces

Step-by-step explanation:

-The exponential decay function is given by the formula:

$P_t=P_oe^{-rt}\\\\$

Given that the half-life is 4 days, we can substitute in the formula to solve the rate of decay for a single half-life:

$P_t=P_oe^{rt}\\\\P_t=0.5P_o\\\\\therefore 0.5=e^{-4r}\\\\-4r=In(0.5)\\\\r=0.17329$

#Since, 1 week has 7 days, 3 weeks is a 21-day period, thus, t=21.

#We substitute and solve for the amount remaining after 21days of decay:

$P_t=P_oe^{-rt}\\\\=75e^{-21\times 0.17329}\\\\=1.97072\\\\\approx1.97 \ oz$

Hence, the amount remaining after 3 weeks of decays is approximately 1.97 ounces

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3 years ago

it takes 2/3 of a day to complete 1/9 of an order of purse. at this rate how long will it take to complete the order

Harrizon [31]

To find how long it takes to complete the order, it will take 9 times of 2/3 of a day to complete an order. 2/3 times 9 equals 18/3 which equals 6 days.

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3 years ago