Answer:
x= 9
y=-12.5
Step-by-step explanation:
3x+2y = 2×2
2x+2y =-7×3
6x+4y =4
- 6×+6y =-21
-2y =25
y=-12,5
2x+2(-12,5)= -7
2x+-25= -7
2x= -7+25
2x/2=18/2
x= 9
Answer:
Step-by-step explanation:
Let the number of blue marbles be x
The number of green marbles = 3x - 2
Total marbles= 18
x + 3x -2 = 18
4x - 2 = 18
4x = 18+2
4x = 20
x =20/4
x =5
The number of blue marbles = 5
The number of green marbles = 3*5 - 2 = 15 -2 = 13
The answer is 0 is this if i stands for a square root.
The answer is -81 if i is a variable.
Answer:
1/4 - unlikely
0.0 impossible
5/10 - equally likely
100% - certain
75/100 - likely
Step-by-step explanation:
For probability, 0 means impossible and 1 means every single time.
So 1/4 is possible, but unlikely.
5/10 is 0.5 which is right between, so equally likely
75/100 is possible and likely
D is the correct answer I think
