Since the lines are perpendicular the opposite angle of labeled is also 60° and so would the two angles on the the lower just opposite way therefore 8x-4=60
-4 -4
8x=56
/8 /8
X=7
Answer:
40
Step-by-step explanation: If 10 : 15, then 4 times both of those should be an hour. This would be 40 : 60. That is why 40 is the correct answer.
Answer: 67 miles per hour
Step-by-step explanation: 
where v is velocity, s is space and t is time;
= 67
Answer:
A) x = 10-/3, y = 20
Step-by-step explanation:
