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An element with mass 570 grams decays by 18% per minute. How much of the element is remaining after 13 minutes,to the nearest 10th of a gram?

Respuesta :

MathPhys

Answer:

43.2 grams

Step-by-step explanation:

A = P (1 + r)^t

where A is the final amount,

P is the initial amount,

r is the rate of growth or decay,

and t is time.

Given:

P = 570

r = -0.18

t = 13

A = 570 (1 − 0.18)^13

A = 43.2

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