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borishaifa [10]
3 years ago
8

These marbles are placed in a bag and two

Mathematics
1 answer:
creativ13 [48]3 years ago
4 0
<h3>Answer:  9/100</h3>

========================================================

Explanation:

There are 3 pink marbles out of 10 total (we can see that 2 yellow + 3 pink + 5 blue = 10 total)

The fraction 3/10 represents the probability of pulling out a pink marble at random. Since the first one is put back, this means the fraction 3/10 stays the same on the second draw as well.

We use the idea mentioned in the hint to multiply the fractions:

(3/10)*(3/10) = (3*3)/(10*10) = 9/100

The probability of pulling two pink marbles in a row is 9/100, where the first marble is put back.

Effectively, if you were given 100 tries at doing this, you should expect about 9 of those times you get 2 pink marbles in a row.

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Step-by-step explanation:

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Step-by-step explanation:

To find the cost per hour, we take the total cost and divide by the number of hours

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egoroff_w [7]

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