Find the present value of the future value.
-$$\mathrm { S } ( \mathrm { t } ) = \mathrm { se } ^ { - 0.018 \mathrm { t } }$$ , where s is the initial amount in grams and t is the time in years since this initial amount was present. If you have a 76-gram piece of this element,
How many grams will you have 4 years from now? Round your answer to the nearest tenth of a
Gram.
A) 0.9 g
B) 81.7 g
C) 70.7 g
D) 37.3 g

Question

Quizplus · Accepted Answer

To find the amount of the element 4 years from now, substitute $s = 76$ grams and $t = 4$ years into the given formula: $$S(t) = 76e^{-0.018 \times 4}$$. Calculating this gives approximately 70.7 grams.

Find the Present Value of the Future Value S(t)=se−0.018t\mathrm { S } ( \mathrm { t } ) = \mathrm { se } ^ { - 0.018 \mathrm { t } }S(t)=se−0.018t

Find the Present Value of the Future Value $\mathrm { S } ( \mathrm { t } ) = \mathrm { se } ^ { - 0.018 \mathrm { t } }$