The answer is 8.67 I think
Expression. Hope this helps. Have a good day.
Answer:
<u>System of equations</u>


--- solution
See attachment for graph
Step-by-step explanation:
Solving (a): Linear equations with 1 solution
The only condition to this is that, the system must have 1 solution.
Other than that, there is no other condition.
A linear equation is represented as:

For the equation to have 1 solution;

And example of such equation is:


Solving (b): The graph
See attachment for graph
The solution is the point of intersection of both lines of the graph. So, we have:

Answer:
a) Option D) 0.75
b) Option D) 0.3
Step-by-step explanation:
We are given the following in the question:
Percentage of students who choose Western riding = 35%

Percentage of students who choose dressage= 45%

Percentage of students who choose jumping = 50%

Percentage of students who choose both dressage and jumping = 20%

Percentage of students who choose Western and dressage = 10%

Percentage of students who choose Western and jumping = 0%

Thus, we can say

Formula:

a) P(student chooses dressage or jumping)

b) P(student chooses neither dressage nor Western riding)

the answer is one because 1×anything equals what your multiplied one by