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2 years ago

If I have the full price of an item, & the discounted price of the same item, how do I find the discount percentage?

Mathematics

1 answer:

melamori03 [73]2 years ago

5 0

Answer:

Subtract the discount price from the full price. Divide the amount of change by the original price.

Step-by-step explanation:

Example: Original price = $40 Sale price = $30

$40-$30= 10

10/40= 1/4

1/4 = .25 or 25%

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2 years ago

Bacteria usually reproduce by a process called binary fission. In this type of reproduction, one bacterium divides to

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Answer:

$\large \boxed{\text{0.0462 min}^{-1}}$

Step-by-step explanation:

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Calculation:

$\begin{array}{rcl}\dfrac{N}{N_{0}}& =& e^{kt}\\\\\dfrac{2}{1}& = & e^{k\times15 \text{ min}}\\\\2 & = & e^{15k \text{ min}}\\\ln 2 & = & 15k \text{ min}\\k & = & \dfrac{\ln2 }{\text{15 min}}\\\\& = & \textbf{0.0462 min}^{\mathbf{-1}}\\\\\end{array}\\\text{The value of the constant k is $\large \boxed{\textbf{0.0462 min }^{\mathbf{-1}}}$}$