Answer: 12
Step-by-step explanation:
For this problem, all you have to do is plug in x=2 into all the x you see.
-3(2)+1.5+2.5(2)-4.5+8(2)
-6+1.5+5-4.5+16=12
Answer:
Step-by-step explanation:
The system is
5x-y=-1
-5x+3y=25
We the two equations to get:
We simplify t get
We divide both sides by 2 to get:
We now substitute y=12 in to the top equation to get:
Answer:
option 4
Step-by-step explanation:
The perimeter is the sum of the sides , then
perimeter = x + x + y + y + yz ← collect like terms
= 2x + 2y + yz
The answer is B part
As the requirement for the student is either a senior or one who studies maths or both.
So, just add the values within the two venn circles divide it by total no of values.
=> 240+40+110/240+40+110+840
=> 360/1200
