Question

в городе 550 тыс.жителей.население в нем ежегодно увеличивается на 8%.сколько жителей будет через год???плиз срочно!!!и 2 задача. для строительсва стадиона 5 бульдозеров расчистили площадку за 210 минут.за какое время 7 бульдозеров расчистят эту площадку?????

Answer 1

550+550*8%=550+44=594 тыс жит- через год

 

7/5= 1,4р- во столько раз больше бульдозеров

210/1,4= 150мин- за столько расчиятят 7 бульдозеров

Answer 2

Population Growth Calculation

To calculate the population after one year in a city with a population of 550,000 that increases by 8% annually, we can use the following formula:

Population after one year = Initial population + (Initial population * Growth rate)

Given that the initial population is 550,000 and the growth rate is 8%, we can calculate the population after one year as follows:

Population after one year = 550,000 + (550,000 * 0.08)

Calculating this, we find that the population after one year will be 594,000.

Bulldozer Clearing Time Calculation

To calculate the time it takes for 7 bulldozers to clear a site that 5 bulldozers cleared in 210 minutes, we can use the following formula:

Time taken = (Initial bulldozer count * Initial time) / Final bulldozer count

Given that the initial bulldozer count is 5, the initial time is 210 minutes, and the final bulldozer count is 7, we can calculate the time taken as follows:

Time taken = (5 * 210) / 7

Calculating this, we find that it will take 150 minutes for 7 bulldozers to clear the same site.

Please let me know if there is anything else I can help you with!