Answer:
A is correct.
Step-by-step explanation:
From the second sentence , we can deduce that the total number of problems is 29.
Now, x represents the number of problems that award 5 marks, while y represents the number of problems that award 2 marks.
Hence x + y = 29.
There are a total of 100 marks. This mean each x has a mark of 5, so total x marks equal 5x. Also, each y has a mark of 2. total y marks equal 2y. Since total marks equal 100. This mean 5x + 2y = 100 which gives our second equation.
This shows A is correct.
Answer:
Most known one: 4 sides
Step-by-step explanation:
They are closed shapes, their sides should be straight, they are strictly 2 dimensional, and finally, all quadrilaterals have 4 sides.
The last step would be what you want to prove which is a. AC ≠ CE
The only answer that has a as the last step is C.
The answer would be: C. b, d, e, c, a
Answer:
-8i + 5
Step-by-step explanation:
Open the parentheses: 2 + i + 3 - 9i
Simplify:
-8i + 5
