
5x -2y = -10 .....1
3x + 6y =66......2
on multiplying eq. 1 by 3
5x -2y = -10 .....1 ×3
15x -6y =-30
now subtract both equations ,
15x -6y =-30
3x + 6y =66
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12x =-96
x= -8.
putting value of x in eq 1
5×8 -2y =-10
40 -2y =-10
40-10=2y
50=2y
25=y.
I agree the answer is B I think so
rDistance (D) = Speed (S) * Time (T)
S * T = r*20/60 mins = r / 3
So r/3
Answer:
-103 + (-35) = -138
138 - 35 = -103
138= answer
Step-by-step explanation:
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