Posted by Golkhadi nep on Friday, June 4, 2010 at 5:36pm.
In the summer of 2008 the population of cuckoos in an area was estimated as 560 pairs. If the numbers returning are declining at 4% each year, calculate
(a) the number of pairs of cuckoos in the area in the summer of 2009;
(b) the number of pairs of cuckoos in the area in the summer of 2020
- Math - Ariel, Friday, June 4, 2010 at 5:48pm
so my guess is that you would start with what ya got
(continue til you get to 2020)
- Math - MathMate, Friday, June 4, 2010 at 7:04pm
If the population declines at 4%, it means that the surviving population is 96% of the previous year.
In the summer of 2008, there were 560 pairs. So in the summer of 2009, there were 560*(96/100)
= 537.6 pairs (theoretically)
= 538 pairs
In the summer of 2009, the population declined again to 96% of the theoretical population of 2008, thus
=516.1 pairs (theoretically)
= 516 pairs (rounded)
Answer this Question
- math - In the summer of 2008 the population of cuckoos in an area was estimated ...
- math - A. Find 3 pairs of numbers for which the least common multiple equals the...
- Math - A sneaker outlet has made the following wholesale purchases of new ...
- Math - List the common multiples from 1 to 100 for each pair of numbers. Then ...
- Math - Find three pairs of numbers for which the LCM (least common multiple) is ...
- health - There are ________ of muscles that are responsible for chewing ...
- Exponential model - Hi, I have a exponential model of P = 5.3 x (1.11)^t. I need...
- simple equations ( math) - A shop sold 216 pairs of shoes in a month, which was...
- Math/modelling - Hi, I have a linear model with equation p =5.1t - 28, which ...
- Maths - Andrew arranged the number 1, 2, 3, ...11, 12 into six pairs so that the...