The time that he studies is the independent variable because you can change that time amount , and the test score / points depend on how long he studies.
S = 3H
^ test score = amount of hours x three points
Answer:
x = 8, y = 6
Step-by-step explanation:
2x + 5y = 46______(1)
3x - 2y = 12_______(2)
(1) x 3 --> 6x + 15y = 138
(2) x 2 --> 6x -4y = 24
(1) - (2) --> 19y = 114
y = 6 sub into (2)
3x - (2 x 6) = 12
3x = 24
x = 8
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To get p add 18 on both side then you will get 56 as p which is the answer
