2 years ago

7 divided by 3 in fractions pls help i need to know rn

Mathematics

1 answer:

Alinara [238K]2 years ago

8 0

Answer:

7/3 or 2 1/3

Step-by-step explanation:

meth

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3 years ago

Plutonium-240 decays according to the function L where o

PIT_PIT [208]

Answer:

$\boxed{\textbf{1700 yr}}$

Step-by-step explanation:

$-\dfrac{\text{d}L}{\text{d}t} = kL\\\\\dfrac{dL}{L}=-kdt\\\\\ln L = -kt + C\\\text{At t = 0, L = L$_{0}$, so C = $\ln L_{0}$}\\\ln L = -kt + \ln L_{0}\\\ln L_{0} - \ln L = kt\\\\\ln \dfrac{L_{0}}{L} =kt$

Data:

L₀ = 24 g

L = 20 g

k = 0.000 11 yr⁻¹

Calculation:

$\ln \dfrac{24}{20} =0.000 11t\\\\\ln 1.2 = 0.000 11t\\\\0.1823 = 0.000 11t\\\\t = \dfrac{0.1823}{0.000 11} = \textbf{1700 yr}\\\\\text{It will take } \boxed{\textbf{1700 yr}}\text{ for the polonium to decay to 20 g}$

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3 years ago

Need some help with this question please.

enyata [817]

Anwser:

Y= -2(x)+5

Step by step explanation

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2 years ago

A 10.5-gallon aquarium is 2/3 full. How many more gallons of water does it take to fill the aquarium?

Natasha_Volkova [10]

The answer is 3.5 gallons

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3 years ago

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