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Algebra/Expert Profile

Abe Mantell

On Vacation
returns 12/25/2016

Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!

Experience in the area

Over 15 years teaching at the college level.




B.S. in Mathematics from Rensselaer Polytechnic Institute
M.S. (and A.B.D.) in Applied Mathematics from SUNY @ Stony Brook

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
JohnnyX08/24/16101010Your unique knowledge and the way you .....
Prashant S Akerkar 07/24/16101010Dear Prof Abe Thank you. Prashant
Prashant S Akerkar 07/24/16101010Dear Prof Abe Thanks. Prashant
Alice07/10/16101010Thank you so much!

Recent Answers from Abe Mantell

2016-07-10 Finding n:

Hello Alice,    Whenever two fractions are equal to each other, we can always "cross multiply"  and get an equivalent equation.  Thus, 6/(n-4)=10/n becomes 6n=10(n-4), now  distribute the 10 on the right

2016-03-17 albebra:

Let x=the cost per tennis racquet, and y=the cost per pair of tennis shoes.    Thus, we get:  1. 150x + 50 y = $14,000  and  2. 80x + 30y = $7,650    We can simplify each... 1. divide through by 50, 2

2015-01-28 fractions:

Hello Desirai,    Have you searched the Internet for help sites?    Here are some links for you:  http://math.whatcom.ctc

2015-01-27 algebra 2:

Assuming the 128 ft/sec is vertical (i.e. straight up), then...  h(t)=128t-16t^2 gives the equation of motion in the vertical direction  (i.e. the height above the ground).  Since this is a parabola, we

2015-01-23 A factoring question:

Hello Tressa,    Consider this problem:  2x+6y-2=2(x+3y-1), yes?    Now look at: (1/2)x+(3/2)y-1/2=(1/2)x+(1/2)*3y-(1/2)*1,  now factor the common factor of 1/2 (just like in the above problem we factored


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