3 years ago

Please help me with this question

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

8 0

Answer:

the answer is B

Step-by-step explanation:

the formula : $V=\frac{4}{3} \pi r^{3}$

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Tom has 2 less than 3 times the number of board games that cindy has. If cindy has 8 board games, how many board games does Tom

Rus_ich [418]

The answer to your math question will be -9 I believe

3 0

3 years ago

1/x + 1/a=1/b,then x=

motikmotik

$\dfrac{1}{x}+\dfrac{1}{a}=\dfrac{1}{b}\ \ \ |subtract\ \dfrac{1}{a}\ from\ both\ sides\\\\\dfrac{1}{x}=\dfrac{1}{b}-\dfrac{1}{a}\\\\\dfrac{1}{x}=\dfrac{a}{ab}-\dfrac{b}{ab}\\\\\dfrac{1}{x}=\dfrac{a-b}{ab}\Rightarrow\dfrac{x}{1}=\dfrac{ab}{a-b}\to\boxed{x=\dfrac{ab}{a-b}}$