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3 years ago

9

Please answer fast!

1 answer:

rosijanka [135]3 years ago

5 0

Multiply the three numbers.

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The denominator of a fraction is four more than three times the numerator. if both numerator and denominator are increased by fo

Ann [662]

Let's call the numerator $x$ . Since the denominator is four more than three times the numerator, it means that it equals $3x+4$ . So, the original fraction is

$\frac{x}{3x+4}$

Note that this implies that $x \neq \frac{-4}{3}$ , otherwise the denominator would be zero. Now, we need to increase both numerator and denominator by 4, obtaining this new fraction:

$\frac{x+4}{3x+4+4} = \frac{x+4}{3x+8}$

Note that this implies that $x \neq \frac{-8}{3}$ , otherwise the denominator would be zero. And we know that this equals 925 (assuming that 925925 is some kind of typo/formatting error). This leads to the equation

$\frac{x+4}{3x+8} = 925$

Since we assumed that the denominator is not zero, we can multiply both sides by it, so that the equation becomes

$x+4 = 925(3x+8) = 7400 + 2775 x$

Subtract 4 from both sides to get

$x = 7396 + 2775 x$

Subtract 2775x from both sides to get

$-2774 x = 7396$

Finally, divide both sides by -2774 to get

$x = \frac{7396}{-2774}$

8 0

3 years ago

Of the 40 pencils in the box 30 of them don’t have an eraser what percent of the pencils do not have a eraser

Mumz [18]

Answer:

75%

Step-by-step explanation:

5 0

3 years ago

If f(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sqrt{x}" alt="\sqrt{x}" align="absmiddle"

kogti [31]

Answer:

Step-by-step explanation:

Given are two functions f and g defined as

$f(x) =\sqrt{x} \\g(x) = x^3+8$

we have to find the composition of functions in all orders

1) $a)(fog)(x)=f{g(x)}=f(x^3+8) =\sqrt{x^3+8} \\\\(fog)(2) = =4,-4$

$b) (fof)(x) = f{f(x)}=f(\sqrt{x} {=\sqrt[4]{x} \\\\When x=25, ans= \sqrt{5}$

$c) (gof)(x) = g(\sqrt{x}) = (\sqrt{x})^3+3 = x^{\frac{3}{2} } +8\\\\d)(fog)(x)=f{g(x)}=f(x^3+8)$

8 0

3 years ago

8 plus 78 oooooooooooooooooooooooooooooooooooooooooooooo

N76 [4]

Answer:

86 ✌️

Step-by-step explanation:

just get a calculator

7 0

3 years ago

1.Write an algebraic expression to represent "five plus the quotient of r and 14"

Alik [6]

Question one is c and question two is a

5 0

3 years ago

Read 2 more answers