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anyanavicka [17]
3 years ago
12

A bag contains 10 black, 15 white, and 25 blue marbles. What is the probability of randomly selecting one

Mathematics
1 answer:
gulaghasi [49]3 years ago
4 0

Answer: 0.8 or 80%

Step-by-step explanation:

First find the total number of marbles:

10 + 15 + 25 = 50 marbles total

To find the number of marbles that are not black:

15 + 25 = 40 marbles that are not black

Set up ratio:

\frac{40}{50} = 0.8 or 80%

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6 0
3 years ago
A survey showed that 35% of the students prefer plain white milk over chocolate milk. If the school has 1200 students. How many
Pani-rosa [81]

780 students prefer chocolate milk.

Step-by-step explanation:

Let,

the total percentage = 100%

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No. of students who prefer chocolate milk = 65% of total students

No. of students who prefer chocolate milk = \frac{65}{100}*1200

No. of students who prefer chocolate milk = \frac{78000}{100}\\

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780 students prefer chocolate milk.

Keywords: percentage, subtraction

Learn more about subtraction at:

  • brainly.com/question/11253316
  • brainly.com/question/11258952

#LearnwithBrainly

4 0
3 years ago
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mamaluj [8]
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