Mr. Stripling needs to take out a loan of $20,000 to be able to pay for his
Graduate courses. He can borrow from two different banks. The first
bank is Union Hill Bank, which offers him 7% interest for 3 years. The
other bank is called Emerson Bank, which offers him 5% interest for 4
years. Which bank should Mr. Stripling borrow the money from to
complete his Graduate courses? Justify your answer.

3428.57

Step-by-step explanation:

20,000/7=

2857.14

20,000/5=

4,000

2857+4,000=

6857.14/2=

3428.57

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for