Answer:
7.5 hours
Step-by-step explanation:
Constance's car has a 12-gallon gas tank.
She can travel 25 miles on one gallon of gas, so she can travel
miles using all gas from the tank.
Constance begins with a full tank of gas and drives at a constant rate of 40 miles per hour.
So, Constance can drive for
hours.
So you have to isolate the variable c
to do so multiply both sides by 2
2*(6/15) = c
you can do the rest
Hope this helps ;)
Well it boils down to 18 - (4 + 9) which is 18 - 13 or 5. So the answer is 5 in this equation.