Answer: Any amount of milage more than 30
Step-by-step explanation: You can write an equation to compare the relationship between the costs that looks like:
102<75+0.9m
27=0.9m
m=30
For any equation,
assume solution of a form,
Which leads to,
Simplify to,
Then find solutions,
For non repeated real root y, we have a form of,
Following up,
For two non repeated complex roots where,
and,
the general solution has a form of,
Or in this case,
Now we just refine and get,
Hope this helps.
r3t40
They would have each had around 2 pounds each
Answer:
Area of a square is given by:
A = a2
where a = length of side
3x-4y=10
-20-x+2y=10 then -30+2y=x now plug this in the other equation:
3(-30+2y)-4y=10
-90+6y-4y=10
2y=100
y=50