To replace the trees destroyed by typhoon Yolanda, the forestry department
of Tagaytay has developed a ten-year plan. During the first year, they will
plant 100 trees. Each succeeding year, they will plant 50 more trees than they
planted the year before.
SEE
-What kind of sequence is involved in the problem?
values?
PLAN
-What is the appropriate formula to be used and the needed
Formula:
Determine the values of:
a =__
in=__
n=__
d=__
Sn=__
r=__
DO
Perform the indicated operation and simplify it.
-Write the formula. ________________
-Substitute the values. _______________
.
LOOK BACK
-The answer should satisfy all the given information in the problem.
Now, back to the questions:
A. How many trees will they plant during the fifth year?
B. How many trees will they have planted by the end of the tenth year?