Word Problems/Expert Profile

Average Ratings

• Knowledgeability 10.0
• Clarity of Response 9.85
• Timeliness 9.78
• Politeness 9.98

• Number of Questions (in Past 24 Hours) 0
• Max Questions to be Asked (in 24 Hour Period) 1
• Total Questions (since joining AllExperts) 316
• Volunteer Since 2003-04-30
• Prestige Points 15370

Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    T = Timeliness    P = Politeness

User	Date	K	C	T	P	Comments
Mel	08/19/09	10	10	9	10	Thank you for all the help :)
Ann	08/12/09	10	10	10	10
Hong-vy	07/27/09	10	10	10	10
Kenneth	07/17/09	10	10	10	10	Thanks for the great reply!
Vandhana	07/17/09	10	8	10	10	Thank You very much

Recent Answers from Abe Mantell

2009-08-12 Matrix Word Problem:

Hello Ann, Let x=# of courtside seats sold, let y=# of endzone seats sold, and let z=# of balcony seats sold. Thus, we get the following equations: 1. x + y + z = 15,000 (the total # of tickets

2009-07-23 Can you please show me the steps to these problems!:

Hello Anne, 1. I gather you mean the cube-root, yes? cube_root(81a^6b^8), factor out perfect cubes... . cube_root(27*3*a^6*b^6*b^2), now the 27a^6b^6 can came out of the cube_root..as: . 3a^2b^2*cube_root(3b^2)

2009-07-21 Word Problem...... PLease Help:

1. Using s(t)=(1/2)gt^2, with s(t)=640 ft and g=32 ft/sec^2, we get . 640=16t^2 ==> t^2=40 ==> t=sqrt(40) or about 6.32 seconds 2. let x=the speed of the car, and t=the time to drive 280 miles.

2009-07-18 Set Theory - Venn Diagram Problem:

Hello Vandhana, Are you certain you have the problem correct? Only 15% (or 30 ppl) DO NOT have a driver's license, but them 78% (or 156 ppl) DO NOT have a license AND did NOT have a parking ticket

2009-07-17 Mathematics - Logic:

It depends how the cubes are oriented. For example, if the 12 cubes are arranged to be 1 layer in height, so we might have a 4x3x1 solid, the surface area is 2(3x4)+2(3x1)+2(4x1) =38 square units