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How many three digit numbers can I make from the four cards |
2005-03-12 |
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From Sue:
I have four playing cards 2,3,4,5 of hearts. How many three digit numbers can I make from the four cards.
Answered by Penny Nom. |
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The benefits of saving for retirement |
2005-03-11 |
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From Nick:
A human resources department wants a report that shows its employees the benefits of saving for retirement. Produce a report that shows 12 predicted retirement account values for each employee - the values if the employee saves 5, 10, or 15% of his or her annual salary for 10, 20, 30, or 40 years. Assume that savings grow at a rate of 8% per year. Not really interested in answers, just the equations to solve the problems.
Answered by Penny Nom. |
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The ratios of Business, Accounting and Engineering majors are: 7:8:10. |
2005-03-11 |
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From John:
There are 500 students in a collage class. The ratios of Business, Accounting and Engineering majors are: 7:8:10.
How many Engineering majors are there in the class?
Answered by Penny Nom. |
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21yd 2ft divided by 5=what? |
2005-03-10 |
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From A student:
1gallon 3qt divided by 6= what?
21yd 2ft divided by 5=what?
Answered by Penny Nom. |
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Discrimination based on gender? |
2005-03-10 |
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From A student:
After being rejected for employment, Kim learns that the Bellevue office has hired only two women among the last 20 new employees. She also learns that the pool of applicants is very large, with an approximately equal number of qualified men and women. Help her address the charge of gender discrimination by finding he probability of getting two or few women when 20 people are hired, assuming that there is no discrimination based on gender. Does the resulting probability really support such a charge?
Answered by Penny Nom. |
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A wrestling schedule |
2005-03-08 |
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From Ed:
Hello my name is Ed and I am a couch of a wrestling team in New Jersey. I was doing searches for formulas on how to make a matrix for team sports and it seems to be hard to find. I came some how to your site and thought I'll give it a try. Here is what we need or are trying.
Answered by Claude Tardif. |
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A nine week schedule |
2005-03-08 |
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From Greg:
I'm trying to build a nine
week schedule where 10 teams play each other once throughout the season.
I make it all the way to week nine, then I start having all sorts of
conflicts.
HELP!!
Answered by Claude Tardif. |
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Biodiesel |
2005-03-08 |
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From William:
My son is doing an demonstration for science class about how to make biodiesel. we are having problems with the conversion. for instance we think there are approx 190 liters in 50 gallons. Is this correct? Also if you needed 3.5 grams of lye per liter, would that be 662g of lye.
Answered by Penny Nom. |
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The cost of concrete |
2005-03-08 |
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From Cathy:
Compute the cost of ready mixed concrete for a driveway 70ft long, 10ft wide, 3 inches deep at a cost of $30.00 per cubic yard
Answered by Penny. |
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A diagonal in a cube |
2005-03-06 |
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From Brett:
A cube has a volume of 64 cubic inches. What is the length of segment AB? Segment AB is a straight line from the top left corner of the cube to the lower right bottom corner
Answered by Penny Nom. |
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Perfecting an ideal gambling system |
2005-03-06 |
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From Gaz:
I am a screenwriter, currently in the fortunate position of having the development of a Screenplay funded by the South Australian Film Corporation. The (anti)hero of this screenplay is a statistician whose life is falling apart around him, thanks in part to his obsession with perfecting an "ideal" gambling system.
Answered by Andrei Volodin. |
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A trig identity |
2005-03-06 |
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From Patrick:
im trying to verify this
identity:
sin(x)+sin(5x)
-------------------- = tan(3x)
cos(x)+cos(5x)
Answered by Chris Fisher. |
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I need to fill an area with rock |
2005-03-04 |
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From Kelly:
if I need to fill an area with rock that is 64 feet long by 4 feet wide and 1 foot 2 inches in depth
how many tons of rock will this job require?
it is also sold by cubic yard how many of these cubic yards will I need?
Answered by Penny Nom. |
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Spraying roses |
2005-03-03 |
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From A student:
A litre and a half of water has 0.045 grams of herbicide added for spraying roses. How many grams of herbicide per litre is this?
Answered by Penny Nom. |
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How much of a acre is this? |
2005-03-02 |
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From Ken:
my property is 11,914 square ft. How much of a acre is this?
Answered by Penny Nom. |
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