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1 year ago

If the simple interest on $4000 for 8 years is $2240, then what is the interest rate?

1 answer:

5 0

$~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill & \$2240\\ P=\textit{original amount deposited}\dotfill & \$4000\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\dotfill &8 \end{cases} \\\\\\ 2240 = (4000)(\frac{r}{100})(8) \implies 2240=\cfrac{32000r}{100}\implies 2240=320r \\\\\\ \cfrac{2240}{320}=r\implies 7=r$

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3 years ago

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3 years ago

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A circular window is drawn on architectural plans where each unit is a foot on a coordinate grid. the window is modeled by the e

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The equation of a circle is given by the formula,

$(x-a)^{2} + (y -b)^{2} = r^{2}$

where (a,b) is the coordinate of the center of the circle, and r is the radius of the circle.

According to the given equation, if we compare this equation with the general equation of the circle.

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On observing this equation we will get that the value of (a,b) is (4,12).

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Hence, The equation indicates that the center of the window is 12 feet from the ground and the distance the window spans 6 feet.

To learn more about Equation of the circle from the given link

brainly.com/question/22223658

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1 year ago

If the simple interest on ​$4000 for 8 years is ​$2240​, then what is the interest​ rate?

If the simple interest on $4000 for 8 years is $2240, then what is the interest rate?