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3 years ago

20 is 50% of what number? If necessary, round to the nearest tenth. Is it 10.0?

2 answers:

7 0

Because 50% is the same as .5 or 1/2, that means 20 is half of the original number.
20+20=40
40 is the correct answer.

liq [111]3 years ago

5 0

If 20 is 50% of a number it is just going to be 20 times 2... so it is 40

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baherus [9]

The probability of randomly selecting a yellow marble out of the bag is $\frac{1}{5}$

Step-by-step explanation:

A bag contains:

7 red marbles
5 yellow marbles
6 blue marbles
4 green marbles
3 orange marbles

We need to find the probability of randomly selecting a yellow marble out of the bag

Probability is the ratio of number of favorable outcomes to the total number of possible outcomes P(A) = $\frac{n(A)}{n(outcoms)}$

∵ A bag contains 7 red marbles, 5 yellow marbles, 6 blue

marbles, 4 green marbles, and 3 orange marbles

- Add all the color to find the number of total marbles

∴ n(all) = 7 + 5 + 6 + 4 + 3 = 25

∵ There are 5 yellow marbles

∵ P(yellow) = $\frac{n(yellow)}{n(all)}$

∴ P(yellow) = $\frac{5}{25}$

- Divide up and down by 5 to simplify the fraction

∴ P(yellow) = $\frac{1}{5}$

The probability of randomly selecting a yellow marble out of the bag is $\frac{1}{5}$

Learn more:

You can learn more about the probability in brainly.com/question/9178881

#LearnwithBrainly

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tatyana61 [14]

54
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blsea [12.9K]

Answer:

Step-by-step explanation:

First

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Step-by-step explanation:

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