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Three digit numbers |
2014-05-15 |
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From Mudassir:
how many 3 digits numbers which at least one digit is 2 ?
Answered by Penny Nom. |
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A problem with numbers |
2014-05-14 |
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From Justina:
Okay so I don't understand how to equal this equation to 10 using bedmas.
I've been stuck on it for a few days now. Is there different ways you can show me
Using these same numbers?
5 2 4 3 1 = 10
Help! Thanks.
Answered by Robert Dawson and Penny Nom. |
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18 golfers for 5 rounds with a teaching Pro |
2014-05-14 |
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From Maree:
We are taking 18 golfers on Tour with a teaching Pro. There are 5 rounds of golf and we want everyone to play with the Pro once, but everyone else to play with as many different people as possible
Answered by Victoria West. |
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Eleven guys on a fishing trip |
2014-05-13 |
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From Mark:
Eleven guys are going on a fishing trip and want to rotate so everyone fishes with the other guys with the fewest number of repeats.
They want to fish in groups of two with one fishing alone for
three and a half days so will rotate seven times.
Is there a combination that works and what is it?
Answered by Victoria West. |
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A circle a square and a rectngle |
2014-05-12 |
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From mazhar:
suppose the length and breadth of the rectangle are 5 cm and 10 cm respectively and M is a point along the corner of the circle. what is the radius of the circle?(diagram is given..but i didn't mention it..actually the diagram looks like a circle inscribed in a square and the right bottom corner one rectangle will be given ,it is touches to circle at a point M that I've already mentioned and the dimensions of that rectangle also I've mentioned) please help me out..
Answered by Penny Nom. |
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Travelling upstream and downstream |
2014-05-12 |
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From Mohanad:
Howie Sorkin can travel 8 miles upstream in the same time it takes him to go 12 miles downstream. His boat goes 15 mph in still water. What is the rate of the current?
Answered by Penny Nom. |
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A 12 week poker tournament |
2014-05-12 |
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From Jamie:
Looking to schedule a 12 week poker tournament with 18 players ...playing 2 separate 9 person tables...I'm looking to have a balanced schedule where everyone player with each other an equal amount of time
Answered by Victoria West. |
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Mary's height as a percentage of Michael's height |
2014-05-11 |
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From Lauren:
Mary is 1.4m tall and her brother Michael is 1.2m tall.
Express Mary's height as a percentage of her brother's.
Answered by Penny Nom. |
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A piecewise graph |
2014-05-10 |
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From Zoe:
Lightning Energy charges residential users for each unit of electrical energy bought from them each quarter, according to the scale below:
0-500 units cost 17 cents per unit
500-1500 units cost $85 plus 10 cents for each unit in the excess of 500
1500 or more units cost $185 plus 9 cents for each unit in excess of 1500
Sketch a graph showing the charge C as a function of U for up to 2000 electricity units
Answered by Penny Nom. |
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The length of a shadow |
2014-05-09 |
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From vijay:
A girl of height 80 cm is running away from the base of a lamp-post at a speed of 2 m/s. If the lamp is 4 m above the ground, find the length of her shadow after 5 seconds.
Answered by Penny Nom. |
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Percentage change |
2014-05-09 |
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From hi:
the hw club had 46 members in sept. in april, the
club had 24 members. what was the percent of change in the hw club's membership from sept. to apan increase or decrease in membership?
ril? what is
Answered by Penny Nom. |
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A question concerning two lines |
2014-05-09 |
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From Hela:
The equation of the line L is 6x+5y=3, and the equation of line Q is 5x-6y=0, which statement below about the line is true?
A) same y intercept
B)parallel
C) Same x intercept
D)perpendicular
Answered by Penny Nom. |
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x - 2 Sin[x] = 0 |
2014-05-08 |
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From chanmy:
please help me to sole this equation x - 2 Sin[x] = 0,thank you
Answered by Penny Nom. |
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How many boards did the carpenter start with? |
2014-05-08 |
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From Yanly:
A carpenter has several boards of equal length. he cuts 3/5 of each board.
After cutting the boards, the carpenter notices that he has enough pieces
left over to make up the same length as 4 of the original boards.
How many boards did the carpenter start with?
Answered by Penny Nom. |
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A schedule for 2 teams of 10 |
2014-05-07 |
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From John:
How can I set up a schedule for 2 teams of 10 on a team to play each individually against each other over a 10 day span at 10 different course with 10 different start times each day. I was looking to not repeat any competition. As an example, Team A would consist of players 1-10, Team B would consist of players 11-20. I would want to have 10 start times a day for 10 days where a member of team A plays a member of team B each day without repeating any matches and any of the same courses and not repeating any of the same start times. Any help in this would be GREATLY appreciated!!!!
Answered by Victoria West. |
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