On November 27, 1993, the New York Times reported that wildlife biologists have found a direct link between the increase in the human population in Florida and the decline of the local black bear population. From 1953 to 2016, the human population increased, on average, at a rate of 3% per year. However, between 1953 and 2000 the black bear population decreased at a rate of 6% per year. In 1953 the black bear population was 11,000. (a) The 2016 human population of Florida was 20.6 million. What was the human population in 1953? Round your answer to the nearest integer. In 1953, the population of humans in Florida was approximately i people. (b) Find the black bear population for 2000. Round your answer to the nearest integer. In 2000, the population of black bears in Florida was about 600 black bears. (c) Had this trend continued, when would the black bear population have numbered less than 100? Round your answer to the nearest integer.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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