muscrat123
  • muscrat123
i need somebody to help me with a lot of questions
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
What is the first question?
muscrat123
  • muscrat123
Jacob makes the following statement: "I have a 60% chance of being selected as the captain of the baseball team and a 20% chance of being elected student body president." What is the probability that Jacob will be selected as the captain of the baseball team and will be elected student body president? 80% 40% 12% 8%
muscrat123
  • muscrat123
sorry it took so long, had to do activity for pe class

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muscrat123
  • muscrat123
@heretohelpalways
anonymous
  • anonymous
\[\frac{ 6 }{ 10 }*\frac{ 2 }{ 10 }\]
anonymous
  • anonymous
is 12/100
anonymous
  • anonymous
convert the fraction into a percentage
muscrat123
  • muscrat123
12% and The table below shows the number of marbles of different colors in a bag: Marble Experiment Color of Marbles Number of Marbles Red 5 White 8 Black 2 Deja draws a marble from the bag randomly without looking. She then draws another marble from the bag without replacing the first one. Which expression shows the probability of drawing red marbles in both the trials? 5 over 15 multiplied by 4 over 14 5 over 15 multiplied by 4 over 15 5 over 15 added to 4 over 14 5 over 15 added to 4 over 15 @heretohelpalways
anonymous
  • anonymous
12% is correct
anonymous
  • anonymous
the probability of drawing a red marble the first time is\[\frac{ 5 }{ 15 }\]
anonymous
  • anonymous
then second time would be \[\frac{ 4 }{ 14 }\]
anonymous
  • anonymous
you need to multiply these fractions, but not add them
anonymous
  • anonymous
so the answer would be...
muscrat123
  • muscrat123
so 5/15 times 4/14
anonymous
  • anonymous
yup
muscrat123
  • muscrat123
There are 7 cards with a picture of a rose and 2 cards with a picture of a daisy. Alfa keeps all the cards face down on the table with the pictures hidden and mixes them up. She then turns over one card face up and finds the picture of a rose on it. She removes this card from the table and turns over another card without looking. What is the probability that the card that Alfa turns over has a rose on it? 6 over 9 6 over 8 7 over 9 7 over 8
muscrat123
  • muscrat123
i chose 6/8
anonymous
  • anonymous
correct
muscrat123
  • muscrat123
The number of chips of different colors in Vicky's bag is shown below: 5 blue chips 11 pink chips 9 white chips Vicky takes out a chip from the bag randomly without looking. She replaces the chip and then takes out another chip from the bag. What is the probability that Vicky takes out a blue chip in both draws? 5 over 25 multiplied by 5 over 25 equals 25 over 625 5 over 25 plus 5 over 25 equals 10 over 25 5 over 25 multiplied by 4 over 24 equals 20 over 600 5 over 25 plus 4 over 24 equals 220 over 600 C?
muscrat123
  • muscrat123
@heretohelpalways
anonymous
  • anonymous
we know that the probabilities are 5/25 and 5/25
anonymous
  • anonymous
now you just need to multiply these fractions
muscrat123
  • muscrat123
i mean A @heretohelpalways

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