Answer:
There is 30 2 pt questions and 10 4 pt questions
Step-by-step explanation:
x is number of two-point questions
y is number of four-point questions
There is a total of 100 points.
There is a total of 40 questions.
Now, we solve by substitution
Plug 30 back in to solve for y
14
Range = Maximum value - minimum value
= 6 - (-8)
= 6 + 8
= 14
-8
-31 and +31 cancel each other out leaving you with -8
because you add. if you would subtract 6 inches by 3 inches it would be 3 inches.
