Answer:
x=-2,y=-4
Step-by-step explanation:
By dividing to lowest terms
5x – 5y = 10= x-y=2.......(1)
6x – 4y = 4=3x-2y=2........(2)
By elimination method
Multiply equation (1) by 3 so as to correspond with equation (2)
3(x-y)=3(2)
3x-3y=6..........(3)
Multiply equation (2) by 1 so as to correspond with equation (1)
1(3x-2y)=1(2)
3x-2y=2..........(4)
Then equation (3)-equation (4)
(3x-3y=6)
-
(3x-2y=2)
__________
-y=4
y=-4
Substitute y=-4 into equation(1)
x-(-4)=2
x+4=2
x=-2
Therefore x=-2,y=-4
The expanded form is adding all the digits so the answer is
700+50+7+0.9+0.02+0.003
3x + 20 = 40 + 40
3x = 60
X = 20
V + 71 = 107
V = 36
Step-by-step explanation:
Substitute the y in the 1st equation with the 2nd equation.
7x + 10(2x + 9) = 36
7x + 20x + 90 = 36
27x + 90 = 36
3x + 10 = 4
3x = -6
x = -2
So now we can find y.
y = 2x + 9 = 2(-2) + 9 = (-4) + 9 = 5.
So x = -2, y = 5.
The chances of Mahir winning all 3 games against James is 0.064
<u>Explanation:</u>
Given:
James chances of winning = 60%
Therefore,
Mahir chances of winning = 100 - 60%
= 40%
Total number of matches = 3
Total percent of winning = 100%
Thus,
The chances of Mahir winning = 
= 0.064
Therefore, the chances of Mahir winning all 3 games against James is 0.064
