Answer:
2.22 hours
Explanation:
If Sally can paint the office by herself in 5 hours, we can say that in one hour she paints 1/5 of the office.
On the other hand, Lucy paints the office in 4 hours, which means that, in 1 hour she paints 1/4 of the office.
Therefore, to know how much they would paint per hour working together, we are going to sum up the fractions they paint per hour:
Therefore, working together they will paint 
of the office in one hour.
Now we can establish a rule of three: if they paint 0.45 of the office in 1 hour, how long (x) will it take them to paint 1.0 of the office?
And therefore 
Therefore, it will take them 2.22 hours to paint the office working together.
The answer is<u> "watching a moving object".</u>
Sound and object movement can be utilized to change perceptions about body measure, as indicated by another investigation by a global group including UCL analysts.
At the point when an object is dropped, the brain precisely predicts when it will hit the floor by considering the range from which it fell. Falsely stretching the time it takes to hear the effect of the protest on the ground drives individuals to refresh their apparent body stature, making them feel taller.
Answer:
lakes, rivers, underground, clouds, and your faucet?
Explanation:
Answer:
Overpopulation is just one hurdle. Overpopulated, developing countries face more food shortages, water scarcity and stunted economic growth by far than more developed nations. ... Uncontrolled fertility causes poverty, which causes hunger, scarcity and distress.
