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3 years ago

Phil invested $600 at 4% compounded monthly for 6.5 years . How much interest did the investment earn?

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

Answer:. 15,600

Step-by-step explanation:

Interest=principal x interest rate x time

Or I=prt

I= 600 x 4 x 6.5 since your principal is 600 interest rate is 4%, and it was 6.5 years. And now you multiply them to get your answer

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Since the equation is undefined for -2

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Step-by-step explanation:

Considering the expression

$\frac{3}{a+2}-6\cdot \frac{a}{-4+a^2}=\frac{1}{a-2}$

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$\mathrm{Find\:Least\:Common\:Multiplier\:of\:}a+2,\:-4+a^2,\:a-2:\quad \left(a+2\right)\left(a-2\right)$

$\mathrm{Multiply\:by\:LCM=}\left(a+2\right)\left(a-2\right)$

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$-\frac{6a}{-4+a^2}\left(a+2\right)\left(a-2\right):\quad -6a$

$\frac{1}{a-2}\left(a+2\right)\left(a-2\right):\quad a+2$

so equation becomes

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$-3a-6+6=a+2+6$

$-4a=8$

$\mathrm{Divide\:both\:sides\:by\:}-4$

$\frac{-4a}{-4}=\frac{8}{-4}$

$a=-2$

$\mathrm{Verify\:Solutions}$

$\mathrm{Take\:the\:denominator\left(s\right)\:of\:}\frac{3}{a+2}-6\frac{a}{-4+a^2}-\frac{1}{a-2}\mathrm{\:and\:compare\:to\:zero}$

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So the following points are undefined

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Therefore, NO SOLUTION for the given equation.

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