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Which one has the most factors? |
2003-10-31 |
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Kristi pose la question :
Of all the whole numbers less than or equal to 5000, which one has the most factors?
Claude Tardif lui répond. |
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Divisibility by 2 or 5 or both |
2003-10-30 |
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Abdu pose la question :
How many positive integers less than 1,001 are divisible by either 2 or 5 or both?
Penny Nom lui répond. |
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1/x + 1/y = 5/12 |
2003-10-30 |
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Ben pose la question :
1/x +1/y =5/12, what is the sum of x and y?
Penny Nom lui répond. |
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12 cookies |
2003-10-29 |
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Joel pose la question :
there are 12 chocolate, sugar and cinnamon cookies. the probability of choosing a chocolate cookie is 1/3. the probability of choosing a sugar cookie is 1/4 what is the probability of choosing a cinnamon cookie
Penny Nom lui répond. |
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A rectangle on a disk |
2003-10-29 |
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Arthur pose la question :
How do I go about solving the following problem: What is the width of the largest rectangle with a length of 16 inches you can cut from a circular piece of cardboard having a 10 inch radius?
Penny Nom lui répond. |
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How much time? |
2003-10-29 |
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Lori pose la question :
I am a elementary teacher 3-6 math. We have just implemented the Houghton Mifflin Math curriculum. It seems to be quite difficult for most of our students. In order to get through all the material we need to do a lesson a day. Although the students are not getting the material that fast. Should we move on without all the students understanding the material or should we wait and remediate until they get it and be behind for the year. This isn't just a few kids its most of the kids. We are also suppose to teach to all the standards so if we don't get to them the students will not do well on the standardized tests.
Diane Hanson lui répond. |
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Trees |
2003-10-28 |
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Ali pose la question :
Is there any formula for counting the number of trees (graphs)?
Denis Hanson lui répond. |
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Means |
2003-10-28 |
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Abdu pose la question :
Question:
80,80,84,85,88,92,97,98 The average of the 8 numbers listed above is 88. Of the following which pair of numbers could be removed from the list without changing the average. A. 80 and 97
B. 80 and 98
C. 84 and 92
D. 84 and 97
E. 85 and 92
Andrei Volodin and Penny Nom lui répond. |
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Solve for x |
2003-10-27 |
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Lonnie pose la question :
i need help with solving equations and formulas such as -3x+b=6x, for x. I do not understand how you find x.
Penny Nom lui répond. |
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Knitting gauge and felting |
2003-10-27 |
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Sara pose la question :
I wish to create a pattern to knit an item that will then be felted, thus, shrink as a result. In order to determine the proper gauge to use in creating the item, I produced a gauge swatch, noted the original properties and then the post-felting properties. They are as follow: Before Felting: 20 stitches(width) x 20 rows(height)yielded:
Gauge: 3.2 stitches(width) and 4 rows(height) = 1"
Dimensions: 6.25"(width) x 5.25"(height) After Felting: 20 stitches(width) x 20 rows(height)
Dimensions: 4"(width) x 3"(height) How do I calculate the percentage change in size to accurately determine the number of stitches and rows needed to produce the desired dimensions for the finished (felted) item?
Penny Nom lui répond. |
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A rock on a string |
2003-10-26 |
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A student pose la question :
a rock on a 4' string is rotated at 80 rpm. what is the linear speed in feet per second? in miles per hour?
Penny Nom lui répond. |
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Maine and Nevada |
2003-10-24 |
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Jimmy pose la question :
From 1989 to 1990, the population of Nevada increased b y 157,000, and that of Maine increased by 30,000. In 1990, the population of Nevada was 1,206,152, and that of Maine was 1,233,223. If the populations of the two states continue to increase at the same rates, when will the populations of Nevada and Maine be the same? Write a verbal model for this problem
Write an equation for the model
Solve the equation and answer the question.
Penny Nom lui répond. |
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A parabola |
2003-10-24 |
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Delores pose la question :
Given the vertex (4, -2) y intercept = -6 find if/where the parabola crosses the x axis?
Penny Nom lui répond. |
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0.810 and 0.801 |
2003-10-24 |
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Ahmed pose la question :
could you please tell me what is the greatest decimal fraction formed of the digits 0, 1 , 8? Is it 0.810 or 0.801, please give me the reason of the answer in details and the references if it possible.
Penny Nom lui répond. |
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Odd Pythagorean triples |
2003-10-23 |
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Kathleen pose la question :
in a triple can a and b be odd numbers
Penny Nom lui répond. |
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