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2 answers:
Answer:
The answers are as follows:
After reading and comparing the values, we get the following answer.
Number of students with blue eyes blond hair are 42.
Difference of the number of students with gray eyes and brown hair and number of students with green eyes and black hair is
Number of students with gray eyes brown hair are 5.
Difference of the number of students with green eyes and blond hair and the number of students with gray hair is because only gray hair marginal total is 35.
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Answer:
Step-by-step explanation:
We have the following variables:
y: hours of sleep
x: age
Each day, a young person should sleep 9 hours
This means that y is 9 added to something
plus 1 4 hour for each year that the person is under 18 years of age.
For each year the person is under 18 years of age, she should sleep 1/4 = 0.25h on top of the 9 hours.
So the equation relating hours of sleep y and age x is: