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max2010maxim [7]
3 years ago
11

The ratio of dark chocolate candies to white chocolate candies is 3 to 2. There are 18 pieces of dark chocolate. How many pieces

of white chocolate are there?
Mathematics
1 answer:
ch4aika [34]3 years ago
4 0

there are 18 pieces of dark chocolate and the ratio of dark and white is 3:2 so we can divide 18 by 3.

18/3 = 6.

This means the ratio of dark chocolate to white as a 1:1 ratio would be 6:6 so we can multiply 6 by 2 to give us the total amount of pieces of white chocolate.

6*2 = 12.

Therefore there are 12 white chocolate pieces.

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A group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets. If they randomly decide who will
Eddi Din [679]

Answer:

D. 0.821

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The combinations formula is important to solve this question:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes

The order is not important. For example, Elisa, Laura and Roze is the same outcome as Roze, Elisa and Laura. This is why we use the combinations formula.

At least 3 girls.

3 girls

3 girls from a set of 5 and 2 boys from a set of 3. So

C_{5,3}*C_{3,2} = 30

4 girls

4 girls from a set of 5 and 1 boy from a set of 3. So

C_{5,4}*C_{3,1} = 15

5 girls

5 girls from a set of 5

C_{5,5} = 1

D = 30+15+1 = 46

Total outcomes

5 from a set of 8. So

T = C_{8,5} = 56

Probability

P = \frac{D}{T} = \frac{46}{56} = 0.821

So the correct answer is:

D. 0.821

6 0
3 years ago
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What is the product of 836 times 6
MissTica

Answer:

5016

Step-by-step explanation:

Product: The result of multiplying

Multiply 836, 6 times

Imagine 6 groups of 836 and adding those together.

You can also use an online calculator to easily solve this problem :)

3 0
3 years ago
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How much longer will hair grow than fingernails in 6 months?
luda_lava [24]
Wow good question .....
6 0
3 years ago
What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3
liubo4ka [24]

<u>Answer:</u>

3/5

<u>Step-by-step explanation:</u>

We are to find the similarity ratio of a cube with volume  729 m^3 to a cube with volume 3375 m^3.

We know the formula for the ratio of two cubes:

\frac{V_1}{V_2} =k^3

where k is the similarity ratio of the two cubes.

Substituting the given values in the formula to find k:

k^3 = \frac {729} {3375}

k^3 = \frac {27} {125}

k^3 = (\frac {27} {125})^3

k=\frac{3}{5}

Therefore, the similarity ratio of the two cubes is 3/5.


8 0
3 years ago
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Different problem same topic please help
BlackZzzverrR [31]

Answer:

see below

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