A culture of bacterial triples in size every four hours. If the bacteria population is estimated to be three million now, what will it be one day from now?

It triples in size every 4 hours, so in 24 hours, there will be 6 triplings.
3 ^ 6 = 729
So, in 24 hours, the population will increase by a factor of 729.
The population will be 729 * 3 million = 2,187 billion.
The answer is 2,187,000,000.

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to