Answer:
Step-by-step explanation:
Let 
y=2x-10
Switch x and y,
x=2y-10
x+10=2y
(x/2)+5=y
So 
Answer:
Step-by-step explanation:
Using the cosine theorem:



The angle is 114.014 degrees if we substract 90 degrees it means that at point L the plane changed its angle by 24 degrees
Answer:
y = 5x
Step-by-step explanation:
Answer:
8:6
Step-by-step explanation:
if you have 8 blue gumballs and 6 pink gumballs the ratio is 8:6