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7 odd numbers |
2010-02-19 |
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From mike:
Hello there,
Problem: find 7 odd numbers who sum is equal to 30.
Hint*My professor said it's possible to add 7 odd numbers and get 30 for an answer!
and he said we can use Negative and rational numbers but no decimal or fractions.
So is there anyway of solving this? Please get back to ASAP! thanks.
Answered by Harley Weston and Tyler Wood. |
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What is the height of this box? |
2010-02-19 |
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From Carol:
A rectangular box with a volume 0.75 cubic meters, Length 1.5 meters and width 0.4 meters. What is the height of this box.
Answered by Tyler Wood. |
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30.0 km per hour |
2010-02-19 |
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From Diana:
if a car travels 30.0 km per hour, how many km will it go in 2.0 hours? How far will it go in 15 minutes?
Answered by Tyler Wood. |
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The vertices of an equilateral triangle |
2010-02-19 |
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From Emma:
If two of the vertices of an equilateral triangle are (2,1) and (6,5), what
are the two possible coordinates of the third side of the triangle? Answer
in radical form.
Answered by Tyler Wood. |
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A code on my pedometer |
2010-02-19 |
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From Jacqui:
Hi I need to break a code on my pedometer. I have only 3 digits 1 2 and 3 but need to fill a 5 digit code. I have tried to find answers but they seem to relate to if the digits are only used once. I can use them in any order and repeated as many times. How many possibilities are there and is there an easy way to run through them. Many thanks
Answered by Tyler Wood. |
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A prism and a pyramid |
2010-02-19 |
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From Juanita:
What is the relationship between the volume of a prism and a pyramid with congruent base areas and heights?
Answered by Tyler Wood. |
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The perimeter of a square |
2010-02-18 |
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From richard:
My question is: In yards what is the perimeter of a piece
of land totaling 6.2 acres. This land is a perfect square.
Answered by Melanie Tyrer. |
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The equation of a circle |
2010-02-18 |
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From AHMED:
find the equation to the circle with centre at the point (1,-1) and touching the straight line 5x+12y=7.
Answered by Penny Nom. |
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A magic square |
2010-02-18 |
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From Mika:
place the integers from -5 to +10 in the magic square so that the total of each row, column, and diagonal is 10.
Answered by Tyler Wood. |
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Substitution method |
2010-02-17 |
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From Melodie:
7x - 4y = -10
4y= x-2
Answered by Tyler Wood. |
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The center of a rectangular room |
2010-02-16 |
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From Diana:
Consider a rectangular room, 15 feet wide, 30 feet long and 12 feet high. What is the exact distance from any of the 8 corners of the room and its geometric center? Can you write a generic formula for such a distance? And if we keep the same proportions on all dimensions, can you write an expression for the same distance as a function of the floor perimeter?
Answered by Penny Nom. |
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Square poles |
2010-02-16 |
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From Steve:
If 1 pole=16.5', and you have an area that is 146 sq. poles, how many sqaure feet would you have?
I calculate that to be 146(16.5)X146(16.5)=5,803,281 sq. feet Is that correct? I am told I need to divide by 146, which makes the answer 39,748. I do not understand why I need to divide by 146....
Answered by Penny Nom. |
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4-digit positive numbers |
2010-02-15 |
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From marjon:
Find the sum of all the 4-digit positive numbers with no zero digit.
Answered by Penny Nom. |
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The dimensions of a flag |
2010-02-15 |
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From dawn:
a state flag was twice as long as it was wide and had an area of 288 sq inches, what were its, dimensions
Thanks
Answered by Penny Nom. |
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Léo a programmé sa tortue |
2010-02-15 |
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From Lucas:
pouvez vous m'aidez a résoudre le problème géométrie suivant:
Léo a programmé sa tortue en lui donnant les ordres suivant:execute 5 fois les instructions suivante:
avance de 4 cm puis tourne a 72° a droite.Dessine le parcour de la tortue.
La tortue est partie d'un point A , que lui dire pour qu'elle revinne a son point de départ?
Merci d'avance
Lucas
Answered by Claude Tardif. |
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