Saturday
November 22, 2014

Homework Help: algebra 2

Posted by Lea on Thursday, February 21, 2013 at 2:59pm.

Can you find the error for me in this equation, find the explicit formula, evaluate the formula for n?
I think the error is in the
a2-a1 formula.and the -62.50.
I know the pattern is 62.50 paid per month.

Your uncle loaned you some money and did not charge interest. The amount you owe him at the end of the first 5 months is $937.50, $875.00, $812.50, $750.00 and $687.00. If the pattern continues, how much will you still owe him at the end of one year?

Compare the terms in the sequence to find a pattern. Then generalize in terms of n.

a2 - a1 = 875,00 - 937.50 = -62.50
a3 - a2 = 812.50 - 875.00 = -62.50
a4 - a3 = 750.00 - 812.00 = - 62.50
a5 - a4 = 687.00 - 750.00 = -62.50

an-an-1 = -62.50

Find an explicit formula.

an = 937.5- 62.50

Evaluate the form for n = 12.
an = 937.5 -62.5n
a12 = 937.5 - 62.5(12)
= 187.5
You still owe him $187.50 at the end of one year.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

algebra - a student write that an=3n+1 is a explicit formula for the sequence 1,...
algebra - Could someone check my work; 1. Generate the first five terms in the ...
Algebra - A = - 113 and A = -213 20 40 this is an arithmetic sequence and i have...
Maths - Let f(x) = tan(x). What is the formula for the conditioning number of f...
Algebra 2 - The simple formula for the nth term of an arithmetic sequence is an...
Algebra - The simple formula for the nth term of an arithmetic sequence is an = ...
statistics - The number of independent errors in a transmitted message of n ...
Calculus - Estimate delta(x) using the Linear Approximation and use a calculator...
math - The simple formula for the nth term of an arithmetic sequence is an = 6n...
Pre-Algebra - Please help to solve to find x,y 1. y=7x-3 2. 4x+2y=8 Take the ...

Search
Members