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melamori03 [73]
3 years ago
9

Can anyone help? Will give Brainly + 22 pts

Mathematics
1 answer:
Degger [83]3 years ago
8 0

Answer:

35 will be the students and 52 will be the parents

Step-by-step explanation:

Multiply 35 with 2.75 =96.25

Multiply 52 with 3.50=182

182+96.25=278.25

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Standard deviation of 19,29,21,22,23
MaRussiya [10]

Answer:

3.370459909

Step-by-step explanation:

Figure out the arithmetic mean of the numbers (22.8)

Subtract the mean from each number and square the difference

Add up the squared differences and divide the number by 5

Square root answer

3 0
2 years ago
30 POINTS NEED HELP ASAP IN CLASS HURRY!!
kirza4 [7]

Answer:

5. -6/4

6. 1/2

7. 12/15

8. -21/8

Step-by-step explanation:

Steps are in picture

3 0
2 years ago
Read 2 more answers
to find the product 3 3/8 * 4 1/9.tara rewrote 3 3/8 as 17/8 amd 4 1/9 as 13/9. she multiplies the fractions to find the product
Ymorist [56]

Answer:

The error Tara made is she rewrote incorrectly 3 3/8 as 17/8 and 4 1/9 as 13/9,

the corrected number can be rewrote as 3 3/8 as 27/8 and 4 1/9 as 37/9.

Step-by-step explanation:

To find the Product of:

3\frac{3}{8}\times 4\frac{1}{9}

The Number can be rewrote as,

\frac{3\times8+3}{8}\times \frac{4\times9+1}{9}\\\\\frac{24+3}{8}\times \frac{36+1}{9}\\\\\frac{27}{8}\times \frac{37}{9}

Tara made error here she rewrote the number incorrectly 3 3/8 as 17/8 amd 4 1/9 as 13/9.

Now multiplying the fraction we get

\frac{999}{72}

Because she rewrote incorrectly which led her answer to multiplication of fraction, the product too was incorrect which she wrote as 221/72.

3 0
3 years ago
Describe a real- world situation in which there is an additive or multiplicative relationship between two quantities . Make a ta
timofeeve [1]
In what way?
Please be a little more specific
6 0
3 years ago
In the triangle below, what is cos B?
Kruka [31]
Cos B = c/a

cosine is adjacent over hypotenuse.


there is an acronym for this: soh-cah-toa

soh: sine is opposite over hypotenuse
cah: cosine is adjacent over hypotenuse
toa: tangent is opposite over adjacent
7 0
3 years ago
Read 2 more answers
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