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.
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George White Elementary School. Homework Help program at the Ridgewood Public Library, Ridgewood, NJ. Individual students.
|Kenneth||11/03/16||10||10||10||Thanks for the reply!|
|Kenneth||10/30/16||10||10||10||Thanks for the explanation and reply!|
|Matthew||09/18/16||10||10||10||Very helpful and insightful!! Thanks a lot!|
|Leslie||09/07/16||10||10||10||10 thank you so much for answering .....|
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
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
"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
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
Let the first choice be a woman. There are 5 possibilities. Choose another 3 people from the remaining 9 people. No repetition, order does't matter. Number of possibilities = 9!/(3!(9-3)!) = 9!/(3!6!)