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Tasya [4]
3 years ago
5

I don’t understand lol

Mathematics
2 answers:
nikitadnepr [17]3 years ago
3 0

Answer:

who asked

Step-by-step explanation:

Kipish [7]3 years ago
3 0

Answer:

He earms <u>$5.50 per hour</u> of baby sitting.

Step-by-step explanation:

The unit rate is how much he earns per hour of babysitting. To find this we have to figure out what to divide from 5 in order to get 1.

5 ÷ 5 = 1

So we know we have to divide 5 by 5  to get 1. This means that we have to divide 27.50 by 5.

27.50 ÷ 5 = 5.5

So this means he makes $5.50 per hour of babysitting. To check this, multiply 5.50 by 5.

5.50 x 5 = 27.50

He earns $27.50 for 5 hours of babysitting, so this is correct.

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IrinaVladis [17]

Answer:

can you take picture for the question?

5 0
3 years ago
HELP i don’t know how to answer this
Black_prince [1.1K]

Answer:

The answer is on the screenshot

Step-by-step explanation:

The steps are also in 2nd screenshot and is on the website, just type in the thing you need solved. Hope i helped :)

6 0
3 years ago
Read 2 more answers
Following are the number of grams of carbohydrates in a sample of 12-ounce espresso beverages offered at Starbucks. 6 , 9, 10, 2
marusya05 [52]

Answer:

x=6, 9, 10, 20, 22, 25, 27, 40 , 48, 59

i= 1,  2 , 3,  4,    5,   6,    7,   8,    9,    10

And as we can see here the position for x=40 is 8, so then we can calculate the percentile for 40 grams like this:

p=\frac{8}{10} *100 = 80

So the  the vale of 40 gr correspond to the 80th percentile of the data since accumulates 80% of the values below.

Step-by-step explanation:

We can define a percentile as "a value on a scale of 100 that indicates the percent of a distribution that is equal to or below it"

For this case we have the following data given:

6 , 9, 10, 20, 22, 25, 27, 40 , 48, 59

And we want to calculate the percentile for the value of 40 grams

Since the dataset is on increasing way there is no problem to calculate this percentile.

We see that we have a total of n =10 observations, and we can rank the position of each observation (i) like this:

x=6, 9, 10, 20, 22, 25, 27, 40 , 48, 59

i= 1,  2 , 3,  4,    5,   6,    7,   8,    9,    10

And as we can see here the position for x=40 is 8, so then we can calculate the percentile for 40 grams like this:

p=\frac{8}{10} *100 = 80

So the  the vale of 40 gr correspond to the 80th percentile of the data since accumulates 80% of the values below.

3 0
3 years ago
A normal distribution of data has a mean of 90 and a standard deviation of 18. what is the approximate z-score for the value 64?
alex41 [277]

Answer:

The approximate z-score for the value 64 is -1.4.

Step-by-step explanation:

Since, the z-score or standard score for the value x is,

z=\frac{x-\mu}{\sigma}

Where,

\mu is the mean score,

\sigma is the standard deviation,

Here, x = 64,

\mu=90

\sigma=18

Hence, the z-score for the value 64 is,

z=\frac{64-90}{18}

=\frac{-26}{18}

=-1.44444444444\approx -1.4

Second option is correct.

3 0
4 years ago
Read 2 more answers
The following uses a 4-step proof, starting with the given statement. Complete the following proof
AlladinOne [14]

1) \overline{JK} \perp \overline{MN}

2) \angle JKM is a right angle (perpendicular lines form right angles)

3) \triangle JKM is a right triangle (definition of a right triangle)

4) \angle 1 and \angle 2 are complementary (the acute angles of a right triangle are complementary)

8 0
2 years ago
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