Weighted Averages in Geometry

Find the weighted average P when the coordinates of A, B & C are -2, 4 & 9 respectively,

given that Point B weighs twice as much as point A and point C weighs four times as much as point A.

Note: write your answer as a single number or P = your answer

Find the weighted average P when the coordinates of A & B are -8 & 22 respectively,

given that Point A weighs twice as much as point B

Note: write your answer as a single number or P = your answer

If point S is at (-11, -3) and point T is at (5, 5), find the weighted average P of the points,

given that point S has a weight of 5 and T has a weight of 3.

Note: enter your answer as a coordinate in the form (x, y)

Find the coordinate of A in Segment AB given that B is located at -5,

the weighted average P = 7, and point A weighs twice as much as point B.

Note: enter your answer as a single number

Suppose Mr. Bouey decides to change his class grading system to the following:

Homework = 30%, Class Participation = 10%, Test/Quizzes = 40% & Final Exam = 20%,

What grade would you have if you scored the following in his class?

Homework: 90, Class Participation: 100, Test/Quizzes: 75, Final Exam: 85

Note: write your answer as single number