The equation would be (100-10) ÷30 your answer would be 3
Answer:time spent on your phone is independent and how much studying you get done is dependent since it depends on how much time your spend on your phone as to how much studying you will get done
Step-by-step explanation:
Please refer to the attachment
5x + 2y = 7 . . . (1)
y = x + 1 . . . (2)
Putting (2) into (1) gives
5x + 2(x + 1) = 7 => 5x + 2x + 2 = 7 => 7x = 7 - 2 = 5 => x = 5/7
From (2) y = 5/7 + 1 = 12/7
Therefore, solution is {(5/7, 12/7)}
