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Darya [45]
3 years ago
6

I need help on this question

Mathematics
1 answer:
Pavel [41]3 years ago
7 0
I think the answer is D sorry if it’s wrong and good luck
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jose pack54 CDs into smallboxes. Each box holdsome 9 CDS . how many boxes does jose pack to hold all 54 CDs
andreyandreev [35.5K]
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3 years ago
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There are 325 children at the zoo . If 64% of children are boys and the
aleksandr82 [10.1K]

Answer:

117 Girls

Step-by-step explanation:

If 64% of the kids are boys, then 36% are girls   64% + 36% = 100%

.36 x 325 = 117  girls

Proof

.64 x 325 = 208 boys

208 + 117 = 325


4 0
3 years ago
Randy and Sandy have a total of 20 books between them. After Sandy loses three by leaving them on the bus, and some birthday gif
nasty-shy [4]

Answer:

Randy had 13 books an Sandy had 7 books.

Step-by-step explanation:

20 - 3 = 17

30 - 17 = 13

13 x 2 = 26

26 + 4 = 30

13 + 7 = 20

Hope this helps! Please mark as brainliest.

3 0
3 years ago
IM 20 MIN AWAY FROM FAILING PLZZZ HELPPPP​
padilas [110]

Answer:

13 and 32

Step-by-step explanation:

let one number be x

Then the other number is x + 19 , then

x + x + 19 = 45

2x + 19 = 45 ( subtract 19 from both sides )

2x = 26 ( divide both sides by 2 )

x = 13

The 2 numbers are 13 and 13 + 19 = 32

5 0
3 years ago
The standard deviation for a set of data is 6.5. The mean is 255. What is the Margin of Error?​
HACTEHA [7]

Answer: The margin of error is 12.74.

Step-by-step explanation:

Since we have given that

Standard deviation = 6.5

Mean = 255

Let 95% level of significance,

So, z value = 1.96

We need to find the "Margin of error":

So, it becomes :

Margin of error = Standard deviation × z-value

Margin of error = 6.5\times 1.96=12.74

Hence, the margin of error is 12.74.

3 0
3 years ago
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