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Lubov Fominskaja [6]
3 years ago
7

C=2πr solve for π If r=123

Mathematics
1 answer:
Yuri [45]3 years ago
7 0

Answer:

                 \bold{\pi=\dfrac c{246}}

Step-by-step explanation:

{}\qquad \bold{c=2\pi r}\\\\{}\qquad\bold{c=2\pi\cdot123}\\\\{}\qquad\bold{c=246\pi}\\\\\div246\qquad\div246\\\\{}\quad\bold{\frac c{246}\,=\,\pi}

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Solve for x. 3x/2 = 15 x = 22 1/2 x = 10 1/2 x = 10 x = 1/10
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Answer:

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Step-by-step explanation:

(3x)/2 = 15 is your question.

Isolate the variable (x). Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS (Parenthesis, Exponent (& roots), Multiplication, Division, Addition, Subtraction).

First, multiply 2 to both sides

((3x)/2) = (15)(2)

3x = (15)(2)

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Next, to isolate the variable (x), divide 3 from both sides

(3x)/3 = (30)/3

x = 30/3

x = 10

x = 10 is your answer

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