Answer :
Final answer:
The rate of change in weight is 2.14 lbs per year.
Explanation:
The rate of change in weight can be calculated by finding the difference in weight between two points in time and dividing it by the difference in years between those two points. In this case, we can calculate the rate of change in weight for the teenager's growth by subtracting the initial weight of 145 lbs in 1986 from the weight of 190 lbs in 2007, which gives us a difference of 45 lbs.
We can then divide this difference by the difference in years, which is 2007-1986 = 21 years. Therefore, the rate of change in weight is 45 lbs / 21 years = 2.14 lbs per year.
Final answer:
To find the rate of change in weight, subtract the initial weight from the final weight and divide by the number of years elapsed, which results in approximately 2.14 lbs per year.
Explanation:
The rate of change in weight for the individual from 1986 to 2007 can be determined by finding the difference in weights and dividing by the number of years that passed. First, subtract the initial weight from the final weight: 190 lbs - 145 lbs = 45 lbs. Then calculate the number of years between 1986 and 2007: 2007 - 1986 = 21 years. Finally, divide the weight difference by the number of years to find the rate of change in weight.
Rate of change = Weight change / Time change = 45 lbs / 21 years = 2.14 lbs per year.
