







Comparing two job offers 
20201117 

Selena pose la question : Raja has been offered two jobs.
Each of these jobs takes 24 weeks to complete.
One job pays $3440 every 8 weeks. The other job pays $2700 every 6 weeks. Raja wants to accept the job that pays more per week.
Show how to use equations to help Raja make her choice. Penny Nom lui répond. 





Ten workers perform one job in five days 
20070821 

Kenneth pose la question : If ten workers perform one job in 5 days, one person performs one job in how many days?
Here is the calculation that I used:
(10 workers X 1 job X 5 days)/(1 person X 1 job X ? days)
The above equals 50/1, and the answer is 50 days because 50/1 = 50. In this calculation I can determine any number of workers or days if the number of jobs remains the same as that in the group of factors from the numerator (10 workers X 1 job X 5 days), that is 1 job. Here is another example to help clarify: (10 workers X 1 job X 5 days)/(? workers X 1 job X 10 days) This equals 50/10. The answer is 5 workers. So, if 10 workers can perform 1 job in 5 days, 5 workers can perform 1 job in 10 days.
Now, if I replace "1 job" from (10 workers X 1 job X 5 days) with a different number, for example, 4 jobs, this amount will prevent the calculation from producing the correct answer.
Here is an example: (10 workers X 1 job X 5 days)/(10 workers X 4 jobs X ? days) Mathematically, the calculation works, but the answer, 1.25 days, is not correct, if I'm not mistaken. If 10 workers can perform 1 job in 5 days, they cannot, by working at the same rate, perform 4 jobs in 1.25 days.
Can you explain, with a simple explanation, why the number representing the jobs in this calculation needs to be the same in the group of factors in both the numerator and in the denominator in order to provide the correct answer? Harley Weston lui répond. 





Worker A can do a piece of work in 15 days,... 
20060323 

Kenneth pose la question : Worker A can do a piece of work in 15 days, worker B in 12 days, and worker C in 10 days. Worker A works 2 days, worker B 3 days, and worker C 3 days. In what time can worker A and worker B finish the job by working together? Penny Nom lui répond. 





Real Pay 
20051107 

Judy pose la question : Is there a formula for computing "real pay"? Example  you are offered a position in your home town for $A, and another position in another town for $B. To work at $B job there would be so many hours in commute time involved (z), and a real daily commute cost (either train, bus, or auto mileagewear, etc.) (x). How would you calculate the real pay of job $B in relation to job $A?
Claude Tardif lui répond. 





Jobs relating to the topics of ratios and proportions 
20050517 

Alexa pose la question : What are some jobs relating to the topics of ratios and proportions other than architects and map makers? Walter Whiteley lui répond. 





Math jobs 
20031212 

Veronica pose la question : Do you know a couple of jobs I can get when I am older in Math? Harley Weston lui répond. 





Motivators 
20010116 

Michelle Stapley pose la question : Do you know of any (or where I can find) student motivators for math at the secondary level? Basically any way I can motivate my students to WANT to learn math. Penny Nom lui répond. 





Estimating the time to complete a job 
20001203 

Jack Hook pose la question : I'm a contractor and need to estimate how much time it will take me to do a specific job. A previous job I did was 6,480.16 Square Feet and I was able to paint it in 31.5 hours. In estimating my next job, how many hours will it take me to paint 11,000 Sqare Feet. Penny Nom lui répond. 





Math in various careers 
20000418 

Jennifer Jones pose la question : I am a Fifth grade student researching how math is used in various careers. What kind of math is used in your career? How do you use math? Harley Weston lui répond. 





Job outlook 
20000412 

Shelby Faust pose la question : what is the future demand, in numbers, of a secondary mathematics teacher? what are the projected costs for this career? what technology skills will be needed for this career? Walter Whiteley lui répond. 





Careers after a math degree 
20000331 

Jeanne Hyer pose la question : What type of careers can a person have with a math degree, and what is the closest thing that you have to an undergraduate degree in financial mathematics? (Administration, math, actuarial science, etc.) Harley Weston lui répond. 





Work jobs 
19990419 

Cindy Miller pose la question : Hi. I'm a college student, majoring in Elementary Education. This semester I am taking a math class for elementary school teachers. I'm not sure if you can help out, but here is what I need. For the class, I am supposed to make 10 work jobs for students. Simple things that teach math that students can work on individually, for example after finishing a test. If you have any suggestions, I would really appreciate it. Penny Nom lui répond. 

