Answer:y=2/3x
Step-by-step explanation:
y=2x-2y
combine like terms
y+2y=2x
y=1
so 1y+2y=3y
3y=2x
divide 3 on both sides 3y =2x
Answer:
Given points ( -10 , -3) and (5, -9)
Step-by-step explanation:
First calculating slope ( m)
= ( y2 - y1) / ( x2 - x1)
= -3+9/ -10-5
= 6/-15
= - 2/5
The equation of line is given by
y - y1 = m ( x - x1)
y +9 = -2/5 ( x -5)
5 (y + 9) = -2 (x -5 )
5y + 45 = -2x + 10
2x + 5y +45 -10 =0
2x + 5y +35 = 0
Which is the required equation
The average speed of Dolly is 33.33kmph.
Average Speed:
The average speed is defined as the total distance travelled by the object in a particular interval of time. It can be calculated by dividing the total distance travelled by the total time taken.
So, Average Speed = total distance / total time
Here,
Let the total distance is 100 km.
Therefore, consider she will travel 60 km at speed of 60 kmph , 30 km at speed of 30 kmph and 10 km at speed of 10 kmph.
she will required times of 1 hour, 1hour and 1hour
So,
Average speed = 100 / (1 + 1 + 1)
=> 100 / 3 = 33.33
To know more about Average speed here
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1. Z=4 10-6
2 y= 6 48/8
3. Q= 13 12+1
6 m=15 11+4
7. 21 19+2
8. S=2 3-1
9. C=6 24/4
17 and 18 are A, but I can't see the rest of the other questions