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3 years ago

1. A bag contains 3 red marbles and 4 blue marbles. Two marbles are drawn at random without replacement.

Mathematics

2 answers:

Korvikt [17]3 years ago

6 0

The probability is 3/7 for the red and 4/7 for blue

Yakvenalex [24]3 years ago

3 0

1. 3/7
2. 4/7
3. 4 in 52 or 1 in 13.
4. I don't know sorry

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2 years ago

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6 0

2 years ago

-25 Points-

Over [174]

$\bf ~\hspace{5em} \textit{ratio relations of two similar shapes} \\\\ \begin{array}{ccccllll} &\stackrel{\stackrel{ratio}{of~the}}{Sides}&\stackrel{\stackrel{ratio}{of~the}}{Areas}&\stackrel{\stackrel{ratio}{of~the}}{Volumes}\\ \cline{2-4}&\\ \cfrac{\stackrel{similar}{shape}}{\stackrel{similar}{shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3} \end{array}~\hspace{6em} \cfrac{s}{s}=\cfrac{\sqrt{Area}}{\sqrt{Area}}=\cfrac{\sqrt[3]{Volume}}{\sqrt[3]{Volume}} \\\\[-0.35em] \rule{34em}{0.25pt}$

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2 years ago