Superscript in paint


Asked by maham237 @ in Mathematics viewed by 138 People


The amount of​ carbon-14 present in a paint after t years is given by y equals y Subscript o Baseline e Superscript negative 0.00012 t Baseline .y=yoe−0.00012t. The paint contains 1414​% of its​ carbon-14. How old are the​ paintings?

Answered by maham237 @



Answer:

16,383.33 years ( approx )

Step-by-step explanation:

Given equation that shows the amount of carbon-14 after t years,

y = y_0 e^{-0.00012t}

Where,

y_0 = initial amount,

∵ 14% of y_0 = \frac{14}{100}y_0 = \frac{7}{50}y_0

\frac{7}{50}y_0= y_0 e^{-0.00012t}

\frac{7}{50}=e^{-0.00012t}

Taking ln both sides,

\ln(\frac{7}{50})=-0.00012t

-1.966=-0.00012t

\implies t =\frac{-1.966}{-0.00012}=16383.33

Hence, the painting would be 16383.33 years old ( approx )


Answered by maham237 @



Answer:

16,383.33 years ( approx )

Step-by-step explanation:

Given equation that shows the amount of carbon-14 after t years,

y = y_0 e^{-0.00012t}

Where,

y_0 = initial amount,

∵ 14% of y_0 = \frac{14}{100}y_0 = \frac{7}{50}y_0

\frac{7}{50}y_0= y_0 e^{-0.00012t}

\frac{7}{50}=e^{-0.00012t}

Taking ln both sides,

\ln(\frac{7}{50})=-0.00012t

-1.966=-0.00012t

\implies t =\frac{-1.966}{-0.00012}=16383.33

Hence, the painting would be 16383.33 years old ( approx )


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