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Hatshy [7]
3 years ago
10

Zena used a probability simulator to roll a 12-sided number cube 100 times. Her results are shown in the table below:

Mathematics
2 answers:
nataly862011 [7]3 years ago
4 0
18/100 because a number one was rolled 18 times out of 100
viktelen [127]3 years ago
3 0
100 over 82 or 18 over 100
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At school 161 students play at least one sport.This is 70% of the number of the student at the school. How many suenos are at th
kondor19780726 [428]
X=number total of student at the school.
70% of x=161
can suggest this equation:
(70/100)x=161
0.7x=161
x=161/0.7=230

Answer: the school has  230 students
7 0
3 years ago
One year Terry had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitch
Colt1911 [192]

Answer:

Their respective​ z-scores are:

Thomas : -2.15279

Karla : -1.40221

Which player had the better year relative to their​ peers, Terry or Karla ​? ​

Terry had a better year because he had a lower Era and he was a better pitcher.

Step-by-step explanation:

The formula for calculating a z-score is is z = (x-μ)/σ,

where x is the raw score,

μ is the population mean

σ is the population standard deviation.

any male pitcher at his​ school,

For Thomas:

z = (x-μ)/σ

x = 2.85 μ = 4.893 σ = 0.949.

z = 2.85 - 4.893/0.949

z = -2.15279

For Karla

z = (x-μ)/σ

x = 2.95 μ = 4.348 σ = 0.997.

z = (2.95 - 4.348) /0

z = -1.40221

Their respective​ z-scores are:

Thomas : -2.15279

Karla : -1.40221

Which player had the better year relative to their​ peers, Terry or Karla ​? ​(Note: In​ general, the lower the​ ERA, the better the​ pitcher.)

Terry had a better year because he had a lower Era and he was a better pitcher.

5 0
3 years ago
What number is the same as 7 tens and 20 ones?<br> What number is the same as 5 tens and 13 ones ?
Elenna [48]
7 tens=10,10....=70
20 ones=1,1....=20
which sum up to be 90
5 tens=50
13 ones=13
=63
5 0
3 years ago
Read 2 more answers
Savannah was paid $87 for 12 hours of babysitting and $65.25 for 9 hours. What is the constant of proportionality that describes
antoniya [11.8K]
12 hours worth $87

1 hour would be  $87/12 = $7.25


9 hours worth $65.25

1 hour would be  $65.25/9 = $7.25


The constant of proportionality is  $7.25 per hour.
7 0
3 years ago
Please help me......​
Scilla [17]

Answer:

-1/4

Step-by-step explanation:

I'm not sure what exactly you needed. But this is the slope of the line. Hope this helps! Have a great day! :)

3 0
2 years ago
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