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4 years ago

10

How would I rearrange this equation to make

da t" alt="- \lambda t" align="absmiddle" class="latex-formula"> the subject?
$e^{-\lambda t} = \frac{N}{M}$

1 answer:

Vinil7 [7]4 years ago

6 0

Easy
remember
ln(e^x)=x
so

$e^{-thingt}= \frac{N}{M}$
take the ln of booth sides
-λt= $ln \frac{N}{M}$

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The question in English is

6 pounds of coffee and 5 pounds of sugar cost 227 pesos and 5 pounds of coffee and 4 pounds of sugar (at the same prices) cost 188 pesos Find the price of one pound of coffee and one pound of sugar.

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y-----> the price of one pound of sugar

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see the attached figure

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