This sequence starts with an initial set; let’s call it s1. This set contains 20 cans, and every set following would have two less cans than the last set. So,
s1=20
s2=s1-2=18
s3=s2-2=16
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•
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s9=s8-2=4
How many cans in the display represents the value of each set added together, so we can denote this as
s1+s2+s3+...+s9
and replacing with values:
20+18+16+...+4 = 108
The number of cans in the display equals 108.
(The set notation seems weird, but by practicing this application now, the Calculus version will seem easier.)
Hey there!
2/3 *30/1= 30/3= 10 and 3/3=1 so 2/1*10/1= 20
So the product is 20
Your question: The turtle population on an island is declining at a rate of 1.4% per year. The population was 3800 in the year 2009. What is the best prediction of the population in the year 2014? Round to the nearest whole number.
Answer: 3541
Good luck mate, remember to always look through notes and so-forth.
On the number line, 1 2 3 4 5 6 7 8 9, 6 is in between 5 and 7.
