We know that 
and 
are equal, and we're looking for their sum. First, we'll need to find the value of 
.
Set the expressions equal to each other:
Subtract from both sides:
Divide everything by 
:
Now that we have the value of , we can substitute it into the sum of the two expressions to get our final answer.
Substitute:
Simplify:
It will take 4 oil changes
y = 30X
120=30(4)
y= 15X + 60
y= 15(4) + 60
y = 60 + 60
y= 120
Answer:
HOPE IT HELPS YA MATE!.please give me brainliest.
The answer is -1... which is option a. I had a to be -0.69 and b to be -0.31.. l hope it helped??
