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asambeis [7]
3 years ago
5

Help me please. i attached an image.

Mathematics
2 answers:
timofeeve [1]3 years ago
8 0
The measure of BEC is 30
kap26 [50]3 years ago
4 0
You answer is 45. I’m ok at math so don’t take it personally if I get it wrong!
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Maia mixed a batch of punch for the class party. Her recipe called for 4 2/5 cups
siniylev [52]
You just have to add all the amounts of the ingredients.
4 2/5 + 3 1/2 + 12 3/4

You can first add all the whole numbers
4 + 3 + 12 = 19

Then, you can add all the fractions
2/5 + 1/2 + 3/4

To add all the fractions, you have to use the LCD. The LCD is 20. So, divide 20 with the denominator of each fraction and multiply the result with the numerator. The denominator of all fractions would now be 20.

So,
(2x4 + 1x10 + 3x5) / 20
(8 + 10 + 15)/20
33/20

The answer is an improper fraction. We divide 33 by 20 and get the remainder.
33/20 = 1 13/20

We have a whole number of 1, we add this to the sum of the whole numbers we got earlier.
19 + 1 =20

Finally, we put together the whole number and the remainder (fraction)
20 13/20.

Therefore, the recipe can make 20 1-cup servings. The remaining 13/20 can't make a full-sized cup.
8 0
4 years ago
If s = -5 and t = 3, find the value of s 2 t.<br><br> 225<br> 75<br> 30<br> -75
Reika [66]

Just answered this one a few minutes ago.

(-5)(-5)(3)= 75

7 0
4 years ago
Read 2 more answers
The ratio of the number of adults to the number of children in a library is 12:5. If there are 45 children in the library, how m
zysi [14]
The answer would be 108. 108:45 can be simplified to 12:5.
4 0
3 years ago
Read 2 more answers
What are the dimensions of the matrix?
DerKrebs [107]

Answer:

  • The dimensions of a matrix are the number of rows × the number of columns of the matrix.
  • For the example below, the the matrix is 3 × 4.

Explanation:

<em>The dimensions of a matrix</em> is the number of rows × the number of columns of the matrix.

Your matrix is garbled. Thus, to help you I will work with an hypothetical matrix.

Assume the matrix:

        \left[\begin{array}{cccc}1&0&0&0\\2&4&0&3\\0&0&0&9\end{array}\right]

That matrix has four colums and 3 rows.

For instance, the first colum is:

            \left[\begin{array}{c}1\\2\\0\end{array}\right]        Thus, it has 4 columns.

And the second row is:

          \left[\begin{array}{cccc}2&4&0&3\end{array}\right]         Thus, it has 3 rows.

Hence,  the matrix is 3 × 4.

The first number is the number of rows and the second number is the number of columnns.

3 0
4 years ago
What is the place value of the 1 in 209.631
Zinaida [17]
It is in the thousandths place.
6 0
3 years ago
Read 2 more answers
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