Two students withheld their scores to determine the strength of the model. Using the actual line of best fit equation, predict t
heir scores based on their hours worked. Actual line of best fit: y= 4.81x + 17.4 Hours (x) | Score (y) 15 | ? 9 | ?
2 answers:
Answer:
The value of y is 89.55 at x=15 and 60.69 at x=9.
Step-by-step explanation:
The equation of best fit line is

where, y is scores of two students after x working hours.
We need to find the score after 15 and 9 hours.
Substitute x=15 in the given equation.


Substitute x=9 in the given equation.


Therefore, the value of y is 89.55 at x=15 and 60.69 at x=9.
Answer:
When x = 15, y = 89.55
When x = 9, y = 60.69
Step-by-step explanation:
We are given the following information n the question:
The actual line of best fit equation predict the scores based on the number of hours worked by the students.
Actual line of best fit:

where x is the number of hours worked and y is the predicted variable that is the scores.
We have to determine the score of students when they worked for 15 hours.
Thus, x = 15
Putting value in the equation:

Score = 89.55
We have to determine the score of students when they worked for 9 hours.
Thus, x = 9
Putting value in the equation:

Score = 60.69
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x - 24 = -8
x = -8 + 24
x = 16
3) 6a + (-1) = 10
6a - 1 = 10
6a = 10 + 1
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a = 11 : 6
a = 11/6
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x + 2 = -12
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x = -14
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a + 2 = -3
a = -3 - 2
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Good luck! :)
Answer:
Step-by-step explanation:
A
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I hope this helps. =)
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Answer:
Altogether they lost 150 pennies.
Step-by-step explanation:
X = Dante's pennies
Y = Mia's pennies
X + Y = 350 1/2 X = 2/3 Y
X = 4/3 Y
4/3 Y + Y = 350
7/3 Y = 350
Y = 350 * 3/7
Y = 50 * 3
Y = 150
X + 150 = 350
X = 200
1/2 * 200 = 2/3 * 150
100 . = 100
1/2 * 200 = 100 -> Dante lost 100 pennies
1/3 * 150 = 50 -> Mia lost 50 pennies
Altogether they lost 150 pennies.