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OpenStudy (anonymous):
A box contains 12 green balls, 11 red balls, 7 white balls, and 10 black balls. What is the probability of drawing a black ball from this box? A. 1/4 B. 1/3 C. 1/40 D. 1/10 will medal and fan
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Theoceangirl (the_ocean_girl):
How many balls are there all together?
OpenStudy (anonymous):
40
Theoceangirl (the_ocean_girl):
How many black balls are there?
OpenStudy (anonymous):
10
Theoceangirl (the_ocean_girl):
So your fraction will be 10/40 Can you simplify that?
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OpenStudy (anonymous):
yes. 1/4
Theoceangirl (the_ocean_girl):
There's your answer :)
OpenStudy (anonymous):
THX :):):):):):)
Theoceangirl (the_ocean_girl):
You're welcome ^.^
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