4/8 just multiply each number by 4!
20/60 = 10/x
Cross multiply 10 with 60
600
Divide by 20
30.
It will take 30 minutes.
Answer:
Solution is (2, -1)
Step-by-step explanation:
The lines cross at the point where x = 2 and y = -1.
The answer would be choice C.
Perpendicular lines cross each other and form a right angle as you can see marked in the third picture.
It would be called
Pythagoras theorum.
