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First we define the variables:
m = multiple choice questions
s = short answer questions
Next we need to satisfy 2 conditions:
1) There are a total of 40 questions. We can represent this mathematically using the variables I defined:

2) The multiple-choice questions are worth 2 points and the short-answer are worth 4 points but they need to total 100 points. This can also be represented mathematically:

By satisfying the conditions provided we were able to create the 2 equations!


Answer:
y
=
−
√
4
x
+
19
Step-by-step explanation:
Draw a diagram! Lets say the width is x, then the length must be 2x.
Area = length x width
2x x x = 8sq meters
2x^2 = 8
x^2 =4
x = √4
x = 2
we found the width the length is two times the width, making it 4 meters.
Hey there mate ;),
Area of The shades region is <u>3098 m^2</u>
The solution is attached as picture. Please check.
<em>Answered</em><em> </em><em>by</em><em> </em><em>Benjemin</em>