Math 160: Study Guide - Chapters 3&4

  1. Identify which type of problem (simple interest, compound interest, future value annuity, or present value annuity) is applicable. Do not attempt to answer the question, only identify the type of problem you would need to answer the question. Ten parts.
  2. Financial problem. I'm being purposely vague here. It could be any of the simple interest, compound interest, future value, or present value problems.
  3. Financial problem
  4. Retirement problem: Find the present value needed to retire, then find the payment needed under a future value to reach that goal. Find out how much money there is after so many years. Determine what happens if an inheritence is applied. Look at the first part of the chapter 3 project.
  5. Financial problem.
  6. Write the solution to the system of linear equations from the augmented matrix. Four parts ... including the special cases. Look at problems 4.3.11-20.
  7. Multiply the matrices by hand and simplify the result. Look at problems 4.4.11-14 and 55-58, but practice on larger matrices.
  8. Perform the row operations on the matrix. Two parts. Look at problems 4.2.13-24.
  9. One elementary row operation has been performed to a matrix. Determine what that row operation is. Two parts. Look at problems 4.2.25-34.
  10. Solve the matrix equation for X. Two parts. Look at the first part of the chapter 4 project.
  11. Leontief Input-Output Analysis. Write the input-output matrix and find the output. Look at problems 4.7.27-34.

Group Portion

  1. Incidence Matrix (shipping / airline / network traffic). Look at problems 4.4.67-68 and also part 2 of the chapter 4 project.
  2. Traffic Flow application problem (map of one-way streets). Look at problems 4.3.89-90.
  3. Dominance Relation (players winning and losing indirectly). Look at problems 4.4.73-74.


Points per problem

# 1 2 3 4 5 6 7 8 9 10 11 G1 G2 G3 Total
Pts 20 3 6 21 8 8 4 4 6 6 5 12 11 11 125