# Word Problems/Expert Profile

## Janet Yang

U.S.
Available
##### Expertise

Word problems are my favorite type of math questions! I would not feel comfortable answering questions that require specialized knowledge (Physics, Statistics, etc.) because I have not studied these in depth.

##### Experience in the area

I tutor students (fifth through twelfth grades) and am a Top Contributor on Yahoo!Answers with over 24,000 math solutions.

##### Publications

Co-author of An Outline of Scientific Writing: For Researchers With English as a Foreign Language.

##### Education/Credentials

I have a Bachelor's degree in Applied Mathematics from the University of California at Berkeley, and a Master of Business Administration degree from The Wharton School.

##### Past/Present Clients

George White Elementary School. Homework Help program at the Ridgewood Public Library, Ridgewood, NJ. Individual students.

### Recent Reviews from Users

K = Knowledgeability    C = Clarity of Response    P = Politeness
Gabriel02/27/171010thanks. I understand but I would have .....
Kenneth10/30/16101010Thanks for the explanation and reply!
Matthew09/18/16101010Very helpful and insightful!! Thanks a lot!
Kenneth09/12/16101010

### Recent Answers from Janet Yang

#### 2017-02-26 word problem:

Aiden began with n fruit.   His friend received (⅕)n fruit, leaving Aiden with (⅘)n fruit.  His sister received (½)(⅘)n fruit, leaving Aiden with (½)(⅘)n fruit.    (½)(⅘)n

#### 2016-11-01 Compound Proportions:

Your conversion factor is the speed of work, i.e., amount of time per job.   men × days gives you the amount of time  houses is the number of jobs  so the speed of work is the number of man-days per house

#### 2016-10-28 Compound Proportions:

195 workers × 20 days = 3,900 worker-days  3,900 worker-days × (10 hours)/day = 39,000 worker-hours  The job takes 39,000 worker-hours to complete the job.    W workers × 15 days × (13 hours)/day = 195W

#### 2016-09-07 Rates:

"20 workers can paint 5 houses in 10 days."  20 workers × 10 days = 200 worker-days  (200 worker-days)/(5 houses) = (40 worker-days)/house    2 houses × (40 worker-days)/house = 80 worker-days  (80 worker-days)/(8

#### 2016-07-29 Unit Rates:

Depends on the phrasing of the question, i.e., what you're trying to solve for.  Without seeing the question, I'm guessing you need to determine how long it would take a certain number of men to paint

Word Problems