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Three one-digit numbers |
2008-12-06 |
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From JOANNA:
Could you please tell me what Adding Three One-Digit Numbers += 15 1-9 without using any number twice
Answered by Penny Nom. |
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Limit of a Trig Function |
2008-12-06 |
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From Berta:
Evaluate limit xcsc2x/cos 5x as x goes to 0
ans is 2 but I get 1/2
x/sin2xcos5x = 2x/2sin2xcos5x= 1/2cos5x
Answered by Penny Nom. |
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A markup of 30% |
2008-12-06 |
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From Tammy:
How can a markup of 30% be calculated by using 1.43 times the original cost? Where does the 1.43 come from? For example: the original cost is 830.00 the markup is 30 %. The selling cost is 1186.90. My boss uses 1.43 to figure the mark up for 30% and 1.23 for 25% and 1.1 for 10%. What I want to know is how do they come up with these figures?
Answered by Stephen La Rocque. |
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Graphing Rational Functions |
2008-12-05 |
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From Bahra:
The question in my homework is: Find all vertical, horizontal, and slant
asymptotes, x- and y-intercepts, and symetries, and then graph each
function. Check your work with a graphing calculator.
y=3/x+3 meanng: ( y= 3 over x+3)
Answered by Janice Cotcher. |
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Finding an Unknown Integer Given Quotients and Remainders |
2008-12-05 |
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From Mark:
What is the least positive integer meeting each of the following conditions?
Dividing by 7 gives a remainder of 4.
Dividing by 8 gives a remainder of 5.
Dividing by 9 gives a remainder of 6.
Answered by Janice Cotcher. |
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What is the pre GST price? |
2008-12-05 |
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From Chris:
I've been looking at a few answers to the question of before and after GST price calculation.
the suggestion have been :: multiply the pre GST price by 1.10 to get the
price and reverse to get a pre GST price.
But how do you calculate the pre GST price from an existing retail price?
For example if you take an item that is $150.00 and multiply it by 0.10
you get $15.00 as the GST add on. Apparently giving you $135.00 as the
pre GST price. However if you then multiply $135.00 by 1.10 you get the
$148.50 as the total.
So the question is how does one calculate the real pre GST price from
an existing retail price?
Regards,
Chris
Answered by Penny. |
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Combinations of Golf Groups |
2008-12-05 |
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From Duane:
We have a golf outing coming up with 25 golfers playing 5 rounds in 5-somes. Is there a formula to figure out where everyone can play with different people each round? Thanks, Duane
Answered by Victoria West. |
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The volume of a yogurt pot |
2008-12-04 |
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From Robyn:
Okay, I know you have some answers on converting this already, but I can not convert the yoghurt pot I need yet into ml.
Is there some way to explain this using the yoghurt as an example?
The pot's 150g of lowfat strawberry yoghurt... would the 'low-fat' have an effect on this?
I'm sorry if this is a bother for you to answer, I just don't seem to be able to get it...
Have a nice day.
- Robyn
Answered by Janice Cotcher and Penny Nom. |
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6 golfers play threeball |
2008-12-04 |
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From Ian:
I have a group of 6 golfers wanting to play 3 rounds as 2x threeballs, but with different players each day. Is this possible? Can you provide some threeball combinations for this please?
Answered by Victoria West. |
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Decimals and fractions used in our daily lives |
2008-12-04 |
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From josh:
i have a projecct due friday and i need to know, how are decimals and
fractions used in our daily lives. i am having trouble coming up with
ideas. i need seven more that dont involve money or recipes. please
help me.
Answered by Harley Weston. |
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Some number theoretic speculations |
2008-12-04 |
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From Andrew:
Another way of looking at the 'alternating parity polynomial', again based on Fermat's Little Theorem,
is to substitute (a - b) for x in x^(p-1) - 1 as this is always divisible by any prime p. So, if one removes
the "- 1", there is always a remainder of (1/p)! (I took up your challenge!)
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Andrew
Answered by Chris Fisher and Victoria West. |
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I am a whole number less than 100 |
2008-12-03 |
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From Cecelia:
If I am a whole number less than 100
and the sum of my digits is 4
and half of me is an odd number
What number am I?
Also am I prime or composite?
Answered by Penny. |
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The volume of a cone |
2008-12-03 |
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From Tamriko:
Hi! Help me, please to solve the following problem: The diameter of an ice-cream cone is 6 cm and the slant height is 10 cm. What volume of ice-cream would fit inside the cone? Thanks!
Answered by Penny. |
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A remainder of 8 |
2008-12-02 |
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From Dawn:
when dividing a 3-digit number by a 1-digit number, for what divisors can you get a reminder of 8 ? Explain
Answered by Chris Fisher. |
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How many four-legged animals are in the field? |
2008-12-02 |
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From evelyn:
Some chickens, cows and sheep are in the field. Their number of legs is 12 more than twice their number of heads. How many four-legged animals are in the field?
Answered by Harley Weston. |
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