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Write the following as a percentage of randomly selecting a black marble from a jar containing the following marbles:

7 white and 3 black

43 white and 3 black

 Apr 19, 2022
 #1
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I'm gonna take this question as two different jars being asked for the values of but I very well could be wrong.

 

Jar #1:

So we have 7 white and 3 black marbles. You need to add the values of 7 and 3 to get 10 marbles in total. So next you would set it up as 3/10 which you get .3 and then multiply the .3 by 100 to get 30% chance of drawing a black marble.

 

 

Jar #2:

Repeat the steps I provided to you in jar #1 for jar #2

 

Good Luck!

 

ILP

 Apr 20, 2022

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