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Five players in a 4-player partnership game |
2013-03-19 |
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From Dee:
I have 5 players who are playing in a 4-player partnership game & want to rotate the 5th person in in such a way that each person is each other person's partner for a game. How can such a rotation be done?
Answered by Penny Nom. |
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The dimensions of a rectangle |
2013-03-19 |
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From stephanie:
the length of a rectangle is 5m more than twice its width, and the area of the rectangle is 88m^2 find the demensions of the rectangle
Answered by Penny Nom. |
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Six-digit passwords |
2013-03-19 |
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From Judy:
Hello:
Can you please explain why the answer to the following question is 10^6?
What is the number of possible six-digit passwords when using the digits 0 through 9, with repetition allowed.
Thank you.
Answered by Penny Nom. |
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Tiling a floor |
2013-03-18 |
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From whitley:
Question from Whitley, a student:
How many square feet of tile do you need to cover the floor of a room that is 20ft, 25ft, 15ft, 20ft, 5ft, and 5ft
I made a replica of the floor
Answered by Penny Nom. |
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An algebraic exercise |
2013-03-18 |
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From autumn:
given: f(x)=x/(x^2+2) determine: [f(x-h)-f(x)]/h
Answered by Penny Nom. |
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If 4 cooks can bake 8 pies in 6 hours????? |
2013-03-18 |
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From Kenneth:
Hello:
I want to determine which quantities are directly and inversely proportional in order to determine the answer for the following:.
If 4 cooks can bake 8 pies in 6 hours, 2 cooks can bake how many pies in 4 hours?
Answer: 2 2/3 pies
Can someone fully explain what I need to know in order to determine what is directly and inversely proportional in the example above?
I thank you for your reply.
Answered by Robert Dawson. |
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Row echelon form |
2013-03-15 |
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From Shawn:
Please help me put matrix in row echelon form:
1 9 8 0
5 8 1 35
1 -4 -1 17
Answered by Penny Nom. |
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Driving a rental car |
2013-03-13 |
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From teresa:
Driving a rental car x miles cost y= 0.25x + 25 dollars.
(a) How much would it cost to rent the car but not drive it?
(b) How much does it cost to drive the car 1 additional mile?
(c) What is the y-intercept of y= 0.25x + 25? What does it represent?
(d) What is the slope of y= 0.25x + 25? What does it represent?
Answered by Penny Nom. |
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Percent profit: State exam question |
2013-03-12 |
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From tony:
which is the correct way to figure 30% profit?
1)
1000 product
500 labor
50 permit
1550 total cost
1550x1.3=2015
2)
1000 product
500 labor
50 permit
1550 total cost
1-.3=.7
1550/.7=2214
Answered by Harley Weston. |
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state exam question |
2013-03-12 |
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From tony:
which is the correct way to figure 30% profit?
1)
1000 product
500 labor
50 permit
1550 total cost
1550x1.3=2015
2)
1000 product
500 labor
50 permit
1550 total cost
1-.3=.7
1550/.7=2214
Answered by Harley Weston. |
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A 3 digit number puzzle |
2013-03-11 |
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From Bonnie:
My number has 3 digits. My number is not a multiple of 100. My number is a multiple of 50. My number is a factor of 1000. What is my number?
Answered by Penny Nom. |
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A chart for y=mx+b |
2013-03-11 |
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From jacinda:
how to make a chart for y=mx+b
Answered by Penny Nom. |
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Fencing a parcel of land |
2013-03-11 |
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From Koleen:
How much fencing do I need for an 56,850 parcel of land for a 15 stable horse barn
Answered by Penny Nom. |
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The dimensions of a rectangle are in the ratio 5:3 |
2013-03-08 |
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From SM:
4. The dimensions of a rectangle are in the ratio 5:3. If the longer side is 18 cm,
a) What is the length of the shorter side?
b) What is the area of the rectangle?
Answered by Penny Nom. |
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Increasing and decreasing sales |
2013-03-06 |
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From Meghan:
Pace Design's sales increased by 30% in the first year, increased by 60% in the second year, decreased by 60% in the third year and increased by 90% in the fourth year. What was the cumulative change in sales over the 4 years?
Answered by Penny Nom. |
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