Step-by-step explanation:
y - y = 2x + 150 -( - 8x - 30 )
0 = 2 x + 150 + 8 x + 30
0.= 10x + 180
- 180 = 10 x
-180/10 = x
-18 = x
then y = 2 (-18) + 150
y = -36 + 150
y = 114
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I can't seem to find the measure because it always when trying to find x (verticla angle) turns into a decimal answer. So I'm hoping that the diagram could help you find your answer.
So what you do is divide 12 and 15 to get 0.8 so your answer is 8 mph (constant rate)
Answer:
x = 2
Step-by-step explanation:

subtract 20x from both sides

divide both sides by -14

add 1 to both sides
