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1 year ago

Miguel invests money in an account paying simple interest. He invests $170 and no money is added or removed from the investment.

After one year, he has $185.30. What is the simple percent interest per year?

Mathematics

1 answer:

stiv31 [10]1 year ago

7 0

$~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$185.30\\ P=\textit{original amount deposited}\dotfill & \$170\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\dotfill &1 \end{cases} \\\\\\ 185.30=170[1+(\frac{r}{100})(1)]\implies \cfrac{185.30}{170}=1+\cfrac{r}{100}\implies \cfrac{109}{100}=\cfrac{100+r}{100} \\\\\\ 109=100+r\implies \stackrel{\%}{9}=r$

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Answer:

Step-by-step explanation:

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We need to calculate a Depreciation Base or Depreciable Cost, and Depreciation Fraction, as the formula attached indicates.

First, the Depreciation Base is calculated by subtracting the total amount $12,000 with the salvage value $3,000 which results in $9,000.

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2 years ago

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Answer with Step-by-step explanation:

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evablogger [386]

Answer:

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Step-by-step explanation:

<h2>PART I: Simplify the expression</h2>

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Hope this helps!! :)

Please let me know if you have any questions

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