So 2/3 of 36 is 24. So 24 that were filled and 2/3 of 40 is 80/3 which equals 26 2/3 to drain it. And then to fill the pool would be 36 hours. What's so hard...
Answer:
840
Step-by-step explanation:
Because there is a zero at the end so it is already at the tenth place.
Do you mean x/-9=(-4)-(-11)x?
