Answer:

Step-by-step explanation:
The time constant of the element X is:


The decay function has the following form:




Y = -3x + 6 = 9
-3x = 3
x = -1
solution is (-1, 9)
Number of questions worth 5 points = 10
Number of questions worth 2 points = 25
Further explanation:
The given system is a system of linear equations in two variables.
We will use the subsitution method to solve the system
Given equations are:

From equation no 1:

Putting x=35-y in second equation

Hence,
Number of questions worth 5 points = 10
Number of questions worth 2 points = 25
Keywords: Linear Equations, Substitution method
Learn more about substitution method at:
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