heyy i have two questions that i am having trouble solving
1)A population in a certain city is growing at a rate proportional to the population itself. After 3 years the population increases by 20%. How long will it take for the population to double?
2) The half-life of radium is 1600 years.
a) Find the percentage of radium that will be decayed after 500 years.
b)Find the number of years that it will take for 75% of the radium to decay.
1)A population in a certain city is growing at a rate proportional to the population itself. After 3 years the population increases by 20%. How long will it take for the population to double?
2) The half-life of radium is 1600 years.
a) Find the percentage of radium that will be decayed after 500 years.
b)Find the number of years that it will take for 75% of the radium to decay.