Download arithmetic and geometric sequence word problem examples

Name: ______________________________________________ Date: _____________ Per: ____
ARITHMETIC AND GEOMETRIC SEQUENCE WORD PROBLEM GRADED HOMEWORK
All final solutions MUST use the formula.
GRADING RUBRIC (1 point off for each day late):
Question 1:
Question 2:
Question 3:
Earned Pts.
1 point – Explicit equation is created. Explanation is included.
______
1 point – Equation is used to solve the problem with full work.
______
1 point – Final answer is written in sentence form.
______
1 point – Paragraph on thinking out the process is clear and makes sense.
______
1 point – Explicit equation is created. Explanation is included.
______
1 point – Equation is used to solve the problem with full work.
______
1 point – Final answer is written in sentence form.
______
1 point – Paragraph on thinking out the process is clear and makes sense.
______
2 points – Answer is correct. Explanation is included.
______
TOTAL POINTS
______
TOTAL % ______
QUESTIONS:
1. Amanda owes $20,000 in interest free college loans. After her first monthly payment, she owed
$19,620. After her second monthly payment, she owed $19,240. If she continues paying at the
same monthly rate, how much will she still owe after her 21st payment?
a. Write an explicit equation for the sequence. Show how you found the numbers you put in
the equation.
b. Use the equation to solve the problem. Show all work.
c. Write your final answer as a sentence.
d. Write a short paragraph explaining your thinking.
CONTINUES ON BACK 
2. Amanda owes $20,000 in interest free college loans. If she pays back the loan at a rate of 1.9%
of the balance per month, how much will she still owe after her 21st payment? Write an explicit
equation for the sequence then use it to solve the problem. Write your final answer as a
sentence. Show all work then write a short paragraph explaining your thinking.
a. Write an explicit equation for the sequence. Show how you found the numbers you put in
the equation
b. Use the equation to solve the problem. Show all work.
c. Write your final answer as a sentence.
d. Show all work then write a short paragraph explaining your thinking.
3. Which method is better? Explain.
TEACHER COMMENTS:
 Fix and return by: ____________________
 Assignment completed