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Alex17521 [72]
3 years ago
6

Juan has 4 1/2 meters of yarn. He needs to cut it into pieces that are 3/4 meter long for a math lesson. How many pieces of yarn

will he have?
A. 9
B. 5 1/4
C. 6
D. 3 3/4
Mathematics
1 answer:
salantis [7]3 years ago
3 0
The answer is c which is 6
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Step by step please and thank you.
cupoosta [38]

Answer:

  the probability is 2/9

Step-by-step explanation:

Assuming the coins are randomly selected, the probability of pulling a dime first is the number of dimes (4) divided by the total number of coins (10).

  p(dime first) = 4/10 = 2/5

Then, having drawn a dime, there are 9 coins left, of which 5 are nickels. The probability of randomly choosing a nickel is 5/9.

The joint probability of these two events occurring sequentially is the product of their probabilities:

  p(dime then nickel) = (2/5)×(5/9) = 2/9

_____

<em>Alternate solution</em>

You can go at this another way. You can list all the pairs of coins that can be drawn. There are 90 of them: 10 first coins and, for each of those, 9 coins that can be chosen second. Of these 90 possibilities, there are 4 dimes that can be chosen first, and 5 nickels that can be chosen second, for a total of 20 possible dime-nickel choices out of the 90 total possible outcomes.

  p(dime/nickel) = 20/90 = 2/9

8 0
3 years ago
suppose that you pay a dollar to roll two dice if you roll some eight or nine you get a dollar back plus a dollar fifty if not y
never [62]
A little confused by the question
6 0
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Which is a way to use prime factorization to find the least common multiple of 8 and 6?
pav-90 [236]

Answer:

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Step-by-step explanation:

3 0
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