







Three consecutive whole numbers 
20180622 

whaha pose la question : the sum of three consecutive whole numbers divided by 4 is equal to 6. find the numbers. Penny Nom lui répond. 





The product of two numbers 
20180619 

amie pose la question : the product of two numbers is 108.when the larger number is divided by the smaller number the quotient is 3. What are the number.tnx Penny Nom lui répond. 





The domain of f(g(x)) 
20180618 

Joshua pose la question : What are the restrictions of the domain of f(g(x))? Penny Nom lui répond. 





A question about the empty set 
20180617 

Andrey pose la question : Hello there!
I got that an empty set is a subset of every set.
There is a question.
Is an empty set an element of every set?
∅ ⊆ {x}True
∅ ∈{x}?
Sorry if the question is easy. A set theory is a bit confusing. Penny Nom lui répond. 





The number of terms in an arithmetic sequence 
20180615 

Don pose la question : how many terms in arithmetic sequence are there if the first term and the last term are 3&59 respectively in common difference is 4? Harley Weston lui répond. 





The base for a circular pool 
20180610 

Adam pose la question : How many sheet of 4ft by 8ft foam would I need to lay under a pool 15dt in diameter Penny Nom lui répond. 





A tangent to a circle 
20180610 

Bellle pose la question : Determine the equation of the circle which has its center at (3,1) and tangent 3x4y+5=0 Penny Nom lui répond. 





The inverse square law 
20180605 

Amy pose la question :
Question about inverse square law ;
Hi, I'm trying to understand some nuances about this law and
have been reading about it a lot online and trying out some homework
for personal interest (hobby )  not school related.
I understand that the simple formula is ; 1/d^2
I was wondering about what appears to be an oddity to me, that
I came across when I was working with a test example I found at this
link ;
http://www.softschools.com/formulas/physics/inverse_square_law_formula/82/
The problem that caught my interest was this one on that page ;
"1) If a bright flashlight has a light intensity of 15.0 candela at a distance 1.00 m from the lens, what is the intensity of the flashlight 100.0 m from the lens?"
So I have a few different questions about this, but the most important
one is, what does it mean if we replace the "1" in ; 1/d^2 with a different value such as a ratio in the form of a decimal value, so instead we have something like this ;
0.75/d^2
???
Does this ratio represent a curve then?
I am thinking that the "1" in the normal formula represents a straight line
Some of the links I was researching ;
http://wisptools.net/book.php?c=3&s=2
http://www.softschools.com/formulas/physics/inverse_square_law_formula/82/
https://www.ndeed.org/GeneralResources/Formula/RTFormula/InverseSquare/InverseSquareLaw.htm Penny Nom lui répond. 





Are those two equations the same? 
20180605 

Francisco pose la question : Solve for y: 2(x+3)=y x=5
Solve for y: (x+3)2=y x=5
Are those two equations the same? Penny Nom lui répond. 





The difference between two numbers is 3 
20180605 

Hannah pose la question : write a pair if integers whose difference is 3 ( given that the greater number is 8 ) Penny Nom lui répond. 





The volume of a berm 
20180604 

Mike pose la question : Have a berm that is 700’ long, 29’ y’all and needs a 20’ top with 51 slope on one side and 31 slope in the other Penny Nom lui répond. 





Two odd integers 
20180604 

Pleroma pose la question : The product of two alternate odd integers exceeds three times the smaller number by 12.
What is the larger number? Penny Nom lui répond. 





$96 is 66 2/3% of what dollar amount? 
20180531 

mary pose la question : $96 is 66 2/3% of what dollar amount? Penny Nom lui répond. 





Taking 6 pills 
20180529 

Dave pose la question : My motives are simple, I want to get revenge on my brother who, unbeknown to me,
repeatedly cheated when we played online Scrabble! Can you help?  he has posed this
question knowing that I'll struggle to get the solution.
Question: He is taking 6 pills a day, if he takes the pills in a different order each day,
how long will it be before he takes the pills in the same order on the same date again?
I think leap years might come in to it!
Will I confess to using you guys?  I'll think about that one. Penny Nom lui répond. 





Monthly Pension 
20180528 

Kenneth pose la question :
Hello:
I have a question regarding how the units cancel in the following:
A company uses the following calculation to determine the monthly payment for its employees as they retire:
1.1% * average 5 years highest salary * years of service
If an employee worked 33 years and his average 5 year salary is $30,705.17, what is his monthly payment?
I used the following to determine his monthly payment, but I am not sure how the units cancel especially the years.
1.1% * $30,705.17 * 33 years divided by 12 months/year
I determined his payment as $928.83 per month, but the year units do not cancel unless the 1.1% is per year.
Is the correct calculation 1.1%/year * $30,705.17 * 33 years divided by 12 months/year so that the units cancel properly?
The $\$30,705.17$ is an average for 5 years of working. It is not $30,705.17 per year.
I thank you for your assistance. Penny Nom lui répond. 

