Answer:
9/2
Step-by-step explanation:
Answer:
t = 6.77 s
Step-by-step explanation:
Given that,
A drop of paint falls from a rafter that is 225 feet above the ground.
We need to find the time when the paint hit the ground. Let the time be t.
Using the second equation of kinematics i.e.

Where
u = 0 (initial velocity is 0 as it was at rest)
a = g
So,

So, it will hit the ground at 6.77 s.
If y=10-4x and 2x+3y=20
Then 2x+3(10-4x)=20
Distribute to : 2x+30-12x=20
Then combine 2x and -12x to make -10
Then you have -10x+30=20
Then subtract 30 from both sides
You get -10x = -10
Divide by -10 on both sides and get x=1