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1 year ago

A total of $5000 is invested: part at 7 % and the remainder at 15 %. How much is invested at each rate if

1 answer:

6 0

0.07 (5000-x) + 0.15x= 480
Solve for x
350-0.07x+0.15x=480
0.08x=130
X=1625 invested at 15%
(5000-1625)=3375 invested at 7%

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Check the explanation

Step-by-step explanation:

Following table shows the calculations:

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Now

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$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

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3 years ago

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Step-by-step explanation:

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3 years ago

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3 years ago

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Step-by-step explanation:

Hey there!

By looking at the figure, the given "2x" and "6x + 28" are co-interior angle.

So,

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8x = 180° - 28°

8x = 152°

$x = \frac{152}{8}$

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Therefore, X = 19°.

Hope it helps...

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3 years ago

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