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horsena [70]
3 years ago
8

Can someone perz help

Mathematics
2 answers:
a_sh-v [17]3 years ago
8 0

Answer:

2/1

Step-by-step explanation:

If it's heads 20 times then it's tails 10 times since the coin is flipped 30 times in total

The ratio of heads to tails is 20/10➡2/1

storchak [24]3 years ago
7 0
A is the correct answer cause you get heads twice as often as tails
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5k + 9 = 89.............
blsea [12.9K]

Answer:

k= 16

Step-by-step explanation:

89-9=80

80/5=16

16=k

5 0
2 years ago
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The conditional relative frequency table below was generated by column using frequency table data comparing the number of calori
inessss [21]

Answer:

B. There is an association because the value 0.15 is not similar to the value 0.55

Step-by-step explanation:

Based on the above picture, for the nutritionist to determine whether there is an association between where food is prepared and the number of calories the food contains, there must be an association between two categorical variables.

The conditions that satisfy whether there exists an association between conditional relative frequencies are:

1. When there is a bigger difference in the conditional relative frequencies, the stronger the association between the variables.

2. When the conditional relative frequencies are nearly equal for all categories, there may be no association between the variables.

For the given conditional relative frequency, we can see that there exists a significant difference between the columns of the table in the picture because 0.15 is significantly different from 0.55 and 0.85 is significantly different from 0.45

We can conclude that there is an association because the value 0.15 is not similar to the value 0.55

3 0
3 years ago
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6th grade math please help
Digiron [165]

Answer:

3/14

Step-by-step explanation:

6/7 ÷ 4

Copy dot flip

6/7 * 1/4

Rewriting

6/4 * 1/7

Divide the top and the bottom of the first fraction by 2

3/2 * 1/7

3/14

8 0
3 years ago
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Use the following situation for the next few questions:
Olegator [25]

Answer:

5 oil changes.

Step-by-step explanation:

60 = 12x + 15y

60 = 12x + 15(0)

60 = 12x + 0

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---- = x

12

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4 0
3 years ago
How do you do this 89.25 ×7 1/4
Elodia [21]

Answer:

647.0625

Step-by-step explanation:


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3 years ago
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