Four versions of the final exam

There are four versions of the final exam. Do not begin until Prof. Hubbard has told you which one you should take. You have from 8:05 am to 10:05 am to finish. Sorry I was late.

Version a

Version b

Version c

Version d

Send the exam to mhubbard@peralta.edu with MATH 15 FINAL in the subject line.
 
Good luck!
 

PRACTICE final exam

No class on Zoom today, but here is a link to a PRACTICE final exam.

The real final will be 8:00 to 10:00 on Wednesday, May 20.

I will be in my office hour today from 12:20 to 12:50, the Zoom room number is

584-656-357

Here is a link to the answers to the practice exam. 

Answers to midterm 2

The complete list of answers can be found here. 

If you are taking the final, it will be from 8:00 to 10:00 on Wednesday, May 20 in the regular Zoom room.

In class midterm 2 due by 10:45 this morning

Here is a link to the in-class portion of the midterm.

Answers to HW 10

Link to take-home exam, due by the end of class on Wednesday, May 6

Here is the link to the .pdf version of the test.

Homework 10 is due by midnight tonight, Monday May 4.

The in-class section of the exam will be from 9:30 to 10:45 am on Wednesday, May 6.
 

Answers to quiz 6

The formula is: deaths/population x 100,000, no parentheses

State                    pop. (nearest 100,000)     deaths                  rate per 100,000

California              39,500,000                    1,809                            5      

Texas                   29,000,000                    690                               2      

Florida                  21,500,000                    1,154                            5      

New York              19,500,000                    17,638                          90     

Pennsylvania          12,800,000                    1,716                            13     

Illinois         12,700,000                    2,125                            17     

Ohio                     11,700,000                    799                               7      

Georgia                 10,600,000                    1,026                            10     

North Carolina        10,500,000                    342                               3      

Michigan               10,000,000                    3,567                            36     

(10 points) If you have the rate r, the number of years y and the amount of the loan A.

The total you will pay back is given by

Total = A * (1 + r*y)

The monthly formula is

Monthly = Total/(12 * y)

Make sure to use the parentheses.

Round answers to the nearest dollar.

If you borrow $50,000 at 5% and have a fifteen year loan, what is the total you will pay back?       Answer: $87,500

If you borrow $50,000 at 5% and have a fifteen year loan, what is the monthly payment?              Answer: $486

If you borrow $50,000 at 5% and have a ten year loan, what is the total you will pay back?  Answer: $75,000

If you borrow $50,000 at 5% and have a ten year loan, what is the monthly payment?          Answer: $625

If you know your monthly pay payment Monthly, the number of years to pay the loan back and the rate, the maximum amount you can borrow is given by

Amount = Monthly * 12 * y / (1 + r*y)

Round the answers to the nearest dollar.

If you can afford to pay $1500 a month and you can get a ten year loan at 5%, what is the largest amount you can borrow?

                                                      Amount: $120,000

If you can afford to pay $1500 a month and you can get a fifteen year loan at 5%, what is the largest amount you can borrow?

                                                      Amount: $154,286      

If you can afford to pay $1500 a month and you can get a twenty year loan at 5%, what is the largest amount you can borrow?

                                                      Amount: $180,000

If you can afford to pay $2000 a month and you can get a ten year loan at 5%, what is the largest amount you can borrow?

                                                      Amount: $160,000