Answer:
18
Step-by-step explanation:
The centroid divides the median into 2 parts from the vertex to one point to the opposite side of the vertex where the median starts.
Put into simpler language. HB is twice as long as HF
If Hf is 6 then HB is 12. BF is the total length of both or 6 + 12 = 18
Answer:
I believe X = 8
Step-by-step explanation:
you would use the equation D + C = B or
48 + 5x + 11 = 11x + 11
then subtract 11 from each side leaving
48 + 5x = 11x
then you would subtract 5x from each side, leading to
48 = 6x
48 ÷ 6 = <u>8</u>
Answer:
86400
Step-by-step explanation:
There are 10 seats. If the Scooby Doo gang will seat adjacent, then we can assume them to be 1 group. This means we are to evaluate the number of ways of seating 6 people. This is given by 
.
But the Scooby Doo gang of 5 can seat within themselves in 
ways.
Total number of possible arrangements 
.
The short answer is to solve one equation for one variable, then swap that variable in a different equation.
Example:
2x + 2y = 6
y-x = 1
Step 1: solve either equation for a variable: (#2) y = x+1
Step 2: substitute for your solved variable (I can substitute x+1 for y)
(#1) 2x + 2(x+1) = 6
2x + 2x + 2 = 6
4x + 2 = 6
4x = 4
x = 1
now use x=1 to solve for y in either original equation
