3 years ago

Help! Need ASAP Please! Problem: The sum of 2 times a number and 5 times its reciprocal is 23/3. Find the numbers.

1 answer:

5 0

<span> x = -1 and x = -4.
you can use substitution

</span>

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ryzh [129]

I think it would be 195 or it might be 195 or it might be 195 or it might be 195

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daser333 [38]

11.6 repeating rounded is 11.7

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3 years ago

Delvig [45]

as you already know, to get the inverse of any expression we start off by doing a quick switcheroo on the variables and then solve for "y".

$\bf \stackrel{f(x)}{y}=x^2-10\implies \stackrel{switcheroo}{x=y^2-10}\implies x+10=y^2\implies \sqrt{x+10}=\stackrel{f^{-1}(x)}{y}$

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pychu [463]

that question does not make any sense

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3 years ago

melomori [17]

Answer:

6.5 hours or 6 and a half hours.

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3 years ago