Answer:
x = - 0.5
y = 2
Step-by-step explanation:
As per the given question,
We have
yi(2x + i)= (1- i)³
Expand it by using cubic identity
Cubic Identity:
(x-y)³ = x³ + 3xy² - 3x²y -y³
Therefore, we get
yi(2x + i)= (1³ + 3i² - 3i -i³)
2xy i + y i² = 1 -3 - 3i + i
(As i² = -1)
2xy i - y = -2i - 2
On comparing the real and imaginary parts on both side, we get
2xy = -2
And
y = 2
Therefore,
x = - 0.5
Hence, the required value of x = -0.5 and y = 2.
2x - y = 2
<u>6x - y = -2</u>
<u>-4x</u> = <u>0</u>
-4 -4
x = 0
2x - y = 2
2(0) - y = 2
0 - y = 2
<u>+ 0 + 0</u>
<u>-y</u> = <u>2</u>
-1 -1
y = -2
(x, y) = (0, -2)
To find 1/3 of 246 students, you would divide 246 by the denominator of 1/3 which is 3. 246 divided by 3 is 82. Another way to formatting this is 246 x 1/3 which is also 82.
This means 1/3 of 246 is 82 so 82 students ride to school in a car. If 1/3 is 82, 2/3 (the remaining amount of student) is 164 (82 + 82 = 164 , 1/3 + 1/3)
So 164 students (2/3 of the students) ride the bus to school.