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A container to hold 600 gallons of water |
2006-11-07 |
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From Cissy:
What size rectangular tank would I need to hold about 500-600 gallons of water.
Answered by Penny Nom. |
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les fraction |
2006-11-07 |
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From Coullet:
béreger boit les 3/5 d'une bouteille de 3/4 de litre jennifer boit les 4/5 d'une bouteille de 1/2 litre diego boit les 2/5 d'une bouteille de 1 litre, puis le quart de ce qui lui reste
Answered by Claude Tardif. |
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Simplifying exprressions |
2006-11-06 |
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From Jessica:
-21(a+2b)+14a-9b
Answered by Stephen La Rocque. |
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1,4,9,16,25,36..... |
2006-11-06 |
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From Teje:
i cannot find the next number for this sequence 1,4,9,16,25,36..... could u help please
Answered by Stephen La Rocque. |
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A boat is being pulled towards a dock. |
2006-11-06 |
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From Cassie:
A boat is being pulled towards a dock. If the rope is being pulled in at 3 feet per second, how fast is the distance between the dock and the boat decreasing when it is 30 feet from the dock?
Answered by Penny Nom. |
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How many yards of dirt would it take to raise 1 acre 200 feet? |
2006-11-06 |
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From Larry:
how many yards of dirt would it take to raise 1 acre 200 feet?
Answered by Larry. |
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la somme des aires des deux dommaines |
2006-11-06 |
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From Nina:
Une ficelle de longeur L = 1m est coupée en deux morceaux. Avec l'un des morceaux, de longeur x, on forme un carré, et avec l'autre un cercle. A quel endroit doit on couper la ficelle pour que la somme des aires des deux dommaines obtenus soit minimale?
Answered by Claude Tardif. |
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équations avec les ages |
2006-11-06 |
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From Ruffin:
Sébastien dit a Aurélie: vous avez 36 ans et j'ai deux 2 fois l'âge que vous aviez quand j'avais votre âge. Quel âge a Sébastien?
Answered by Claude Tardif. |
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A proof by induction |
2006-11-06 |
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From Zamira:
i have a problem with this mathematical induction: (1^5)+(2^5)+(3^5)+...+(n^5) = ((n^2)*((n+1)^2)*((2n^2)+2n-1))/12
Answered by Penny Nom. |
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A melting snowball |
2006-11-06 |
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From Jay:
A snowball melts at a rate proportional to its surface area. Show that its radius shrinks at a constant rate. If it melts to 8/27 of its original volume in 20 minutes, how long will it take to melt completely? Please I need your help.
Answered by Stephen La Rocque. |
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Simultaneous equations |
2006-11-06 |
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From An other:
e^2y-x+2=0
ln(x+3)-2y-1=0
Answered by Penny Nom. |
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Direct variation |
2006-11-05 |
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From Johann:
The perimeter of regular octagon varies directly with the length of one side of the octagon
Answered by Stephen La Rocque. |
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How do I calculate the roll diameter? |
2006-11-05 |
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From Bob:
if I have the RPM of the roll and the thickness of the web coming off the roll and the mm/min of the web how do I calculate the roll diameter?
Answered by Stephen La Rocque. |
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A mixture problem |
2006-11-05 |
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From Lynne Rae:
How many kg of 30% salt solution by mass and 40% salt solution by mass should be mixed to form 200kg of 37% salt solution by mass?
Answered by Penny Nom. |
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Bill has four more dimes than nickels ... |
2006-11-05 |
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From Allison:
bill has four more dimes than nickels, and seven fewer nickels than pennies.he has a total of $3.35. how many of each kind of coin has he?
Answered by Karen McIver. |
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