3 years ago

Which expressions are equal to 2(2x + 1)

Mathematics

1 answer:

musickatia [10]3 years ago

7 0

The answer is 4x+2 , hope this helps

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Y is directly related to x and y is 81 when x is 27 the constant of.variation is

suter [353]

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The constant of variation is 3

Step-by-step explanation:

Given.

$y=81$

$x=27$

And y is directly related to x

$y$ ∝ $x$

Here k is constant of variation

$y=kx$

$k=\frac{y}{x}$ --------------(1)

Put the $y$ and $x$ value in equation 1.

$k=\frac{81}{27}$

$k=3$

So, the constant of variation is 3.

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3 years ago

Which expressions are equal to 2(2x + 1)​

Which expressions are equal to 2(2x + 1)