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The sum of the digits of a two-digit number is 13. |
2007-01-27 |
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Liz pose la question :
The sum of the digits of a two-digit number is 13. If the digits are reversed, the new number is 9 more than the original number. Find the original number.
Penny Nom lui répond. |
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The interest is compounded daily |
2007-01-26 |
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Kimberey pose la question :
If I put $2000 in a savings account with 5.05% APR and the interest is compounded daily, but credited monthly, how much would I have at the end of a year?
Stephen La Rocque lui répond. |
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Can you make a square out of a right triangle by using only one straight line? |
2007-01-26 |
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Debra pose la question :
Can you make a square out of a right triangle by using only one straight line?
Stephen La Rocque and Penny Nom lui répond. |
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Upper Quartiles |
2007-01-26 |
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Jamie pose la question :
I see you have a question about Q3 with even numbers but what about odd numbers? I have a problem with 19 numbers 36,45,49,53,55,56,59,61,62,65,67,70,75,81,82,86,89,94,99. Is there anyway the answer could be 81.5 because every time I do it I get 82 and my teacher tells me that is wrong. So in conclusion how do you do it?
Penny Nom lui répond. |
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Baby weight gain |
2007-01-26 |
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Reynaldo pose la question :
A baby weighed 3.2 kg at birth. She gained 0.17 kg per week. How old was she when she weighed 5.75 kg?
Penny Nom lui répond. |
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Greatest common factor |
2007-01-26 |
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Alexis pose la question :
What is the greatest common factor of 52,and 100?
Penny Nom lui répond. |
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Take $.01 and double it every day for 30 days. |
2007-01-26 |
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Pat pose la question :
Take $.01 and double it every day for 30 days. How many dollars would you have?
Stephen La Rocque lui répond. |
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The altitude of regular n-side pyramid |
2007-01-26 |
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Wendimu pose la question :
The altitude of regular n-side pyramid is half of it's base side.What is the angle between the lateral face and it's base?
Penny Nom lui répond. |
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Grams and mls |
2007-01-26 |
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Larissa pose la question :
Is there a formula to convert grams to mls..?
Stephen La Rocque lui répond. |
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Concrete slab |
2007-01-26 |
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Cindy pose la question :
How much concrete will it take to pour a slab 16ft.By 18ft. 3inches deep
Penny Nom lui répond. |
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The area of a ellipse |
2007-01-25 |
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Ranjit pose la question :
I have a task in which i have to find the area of a ellipse. i find this difficult because i have only been provided with the perimeter, which is 1000m.
Chris Fisher lui répond. |
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A circle inscribed in an octagon |
2007-01-25 |
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Anna pose la question :
If I know that the sides of my octagon are 8 units, how do I determine the radius of an inscribed circle?
Penny Nom lui répond. |
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exposant 0 |
2007-01-25 |
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Judith pose la question :
Je suis stagiaire dans une classe de sixième année et j'aimerais pouvoir expliquer à mes élèves pourquoi tous les nombres exposant 0 donne 1 comme réponse. ( 10 exposant zéro = 1) Merci!
Claude Tardif lui répond. |
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Splitting a 5 acre piece of property |
2007-01-25 |
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John pose la question :
I have a 5 acre piece of property that I wish to split into 5 individual 1 acre parcels. The 5 acre parcel 1s 660 feet in length and 330 feet in width. The first two parcels are 264'x165', but I am asking for help getting the perimeters of the last 3 lots, one of which is a irregular pentagon. All of the one acre parcels must have an area of 43,560 square feet each.
Penny Nom lui répond. |
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A regular pentagonal pyramid |
2007-01-25 |
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Vickifazio pose la question :
a regular pentagonal pyramid has a base perimeter of 1,085 ft. How long is one side of the base?
Stephen La Rocque lui répond. |
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