Answer:
Let me give you an example of a segment addition problem that uses three points that asks the student to solve for x but has a solution x = 20.
First, I assumed values for each x, y and z and then manipulated their coefficients to get the total at the end of each equation.
20 + 10 +30 = 60
40 + 0 + 40 = 80
40 + 10 = 50
Then exchangeing these numbers into values and we have the following equation.
x + 2y + 3z = 60
2x + 4z = 80
2x + z = 50 so its easy
If you will solve them manually by substituting their variables into these equations, you can get
x = 20
y = 5
z = 10
Explanation:
MUx / MUy = Px / Py is the right answer
Answer:
They sold 40 shirts and 40 magazine subscriptions.
Explanation:
profit per shirt = $5
set up costs = $40
profit per magazine = $4
S = shirts
C = setup costs
M = magazine
5S - C = 4M
S = M so we replace
5S - 40 = 4S
5S - 4S = 40
S = 40
They sold 40 shirts and 40 magazine subscriptions.