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STatiana [176]
3 years ago
10

Suppose that x=6 and y=8. If y is inversely related to x, what is y when x=3?

Mathematics
1 answer:
andrey2020 [161]3 years ago
5 0
\bf \qquad \qquad \textit{inverse proportional variation}\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad  y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
x=6\\
y=8
\end{cases}\implies 8=\cfrac{k}{6}\implies 48=k
\\\\\\
therefore\qquad \boxed{y=\cfrac{48}{x}}
\\\\\\
\textit{when x = 3, what is \underline{y}?}\qquad y=\cfrac{48}{3}
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Step-by-step explanation:

We have been given that an amount of $53,000 is placed in an investment account that grows at a fixed rate of 2% (compound growth) per year. We are asked to find the amount in the account after 4 years.

To solve our given problem we will use compound interest formula.\

A=P(1+\frac{r}{n})^{nt}, where,

A = Final amount after t years,

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r = Annual interest rate in decimal form,

n = Number of times interest is compounded per year,

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Let us convert our given rate in decimal form.

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Upon substituting our given values in compound interest formula we will get,

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A=\$53,000*1.08243216

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