A.
A.eddcccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
Step-by-step explanation:
8×4 = (A×7) - (A×3) = A(7-3) = A×4
A = 8
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:
![m+s=40](https://tex.z-dn.net/?f=m%2Bs%3D40)
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:
![2m+4s=100](https://tex.z-dn.net/?f=2m%2B4s%3D100)
By satisfying the conditions provided we were able to create the 2 equations!
![m+s=40](https://tex.z-dn.net/?f=m%2Bs%3D40)
![2m+4s=100](https://tex.z-dn.net/?f=2m%2B4s%3D100)
Answer:
A. 35
Step-by-step explanation:
a || b .....(given)
line c is their transversal.
-> x° + (3x + 40)° = 180° (Interior angles on the same side of transversal)
-> (3x + 40 + x)° = 180°
-> (4x + 40)° = 180°
-> 4x + 40 = 180
-> 4x = 180 - 40
-> 4x = 140
-> x = 140/4
-> x = 35
Answer:
x= 9, x= 2
Step-by-step explanation:
x^2- 2x- 9x+ 18= 0
x (x-2) -9 (x-2)
(x-9) (x-2)
x-9= 0, x-2= 0
Therefore, x= 9, x= 2
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