Answer:
a
Step-by-step explanation:
Answer:
D: (1, 4)
Step-by-step explanation:
You can either solve by substitution or elimination. If you are timed, the fastest way is to guess and check (plug-in the answer choices)
I will be using substitution to solve this:
Step 1: Since you have y already, you can set them equal to each other
x+3 = 3x+1
3 = 2x +1
2 = 2x
x = 1
Step 2: Now you have x, plug x into one of the original equations. In this case, I will use the first one
y = 1 + 3
y = 4
Step 3: Now write your answer as a coordinate plane point
x = 1, y = 4
(1, 4)
No, not all of these questions are statistical.
The first question does Mary like snacks is a Yes or No question which doesn't provide any statistics.
Again
1000kg = 1ton
3000kg = 3 tons
The perimeter is 41.7.
We first find the distance between each vertex using the distance formula:

We now find the perimeter by adding all of the side lengths:
14+7.81+19.92 = 41.73 ≈ 41.7