Answer:
If we know that the herd of bison had a decrease in population from last year to this year, and we know the current population is 550, we need to determine the previous year's population.
However, we are not given the percentage or number of the decrease, so we cannot calculate the exact previous year's population.
We can only provide an estimate of the previous year's population assuming that the decrease was constant or consistent each year. For instance, if we assume that the population decreased by 10% each year, then we can calculate the previous year's population using the following formula:
Previous year's population = Current population ÷ (1 - Decrease rate)
where the decrease rate is expressed as a decimal.
Substituting the values, we get:
Previous year's population = 550 ÷ (1 - 0.10)
Previous year's population = 550 ÷ 0.9
Previous year's population ≈ 611
Therefore, if we assume that the population decreased by 10% each year, then the previous year's population would have been approximately 611 bison. However, if the actual decrease rate is different or if there were other factors that affected the population, then the actual previous year's population could be different.
Explanation: