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noname [10]
3 years ago
6

How many twelfths are there in 2/3 of 3/4 more than 1/3 of 3/8 ? I know the answer already, please show how you do it .

Mathematics
1 answer:
maksim [4K]3 years ago
7 0
Ok so what this means is below:
\frac{2}{3}* ( \frac{3}{4}+  \frac{1}{3} * \frac{3}{8} )
Now we need to follow the rules of PEMDAS:
So inside the parentheses we need to do the multiplication first 1/3*3/8=1/8
Now we need to add 3/4 to this 1/8+3/4=7/8
Now do 2/3 of the value of the parenthesis 7/8
This is 14/24 = 7/12
Therefore there are 7 twelfths
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What is the value of a in the equation 3a + b = 54, when b = 9?
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3a + 9 = 54
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3 years ago
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Step-by-step explanation:

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3 years ago
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Suppose that Y takes on the values {0, 1, 2, 3}, each with probability 1/4. Take a random sample of 5 numbers from this distribu
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Answer:

The total number of samples that give this outcome is 5.

Step-by-step explanation:

Since Y takes values in {0,1,2,3}, For us to have that Y_1+Y_2+Y_3+Y_4+Y_5=1 implies that all of them are zero but one. The one that is non-zero necessarily is equal to 1. To calculate the number of samples that give this outcome is equivalent to counting the total number of ways in which we can pick the i-index such that Y_i=1. Note that in this case we can either choose Y1 to be 1, Y2 to be 1 and so on. So, the total number of samples that give this outcome is 5.

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3 years ago
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21


3 times 5 =15

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3 years ago
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