1/3 of a number is 12 less than the number itself

1 answer:

5 0

Let "x" be a substitute for "a number"

1/3(x)=x-12 Multiply by 3
x=3x-36 Get n onto the same side of the equation
2x=36 Divide by 2
x=18

That's your answer.

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Select the three expressions that are equivalent to 4/9

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Answer:

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Step-by-step explanation:

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Given r=3 and a center of (3,5)? Find the equation of the circle in standard and general form.

alukav5142 [94]

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(x -3)^2 +(y -5)^2 = 9
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Step-by-step explanation:

The standard form equation for a circle of radius r and center (h, k) is ...

(x -h)^2 +(y -k)^2 = r^2

For radius 3 and center (3, 5), this is ...

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Expanding this and subtracting the constant on the right gives ...

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