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Cubes and squares |
2009-09-16 |
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From Stanley:
What is a three consecutive digit number like 5,6,7 , which is two less than a cube and two more than a square?
Answered by Robert Dawson. |
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Common multiples of 36 and 48 |
2009-09-15 |
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From Kamaldeep:
Find the first 2 common multiples of 36 and 48.
Answered by Penny Nom. |
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Ordering fractions |
2009-09-15 |
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From stacy:
I need help with listing fractions from the least to greatest. last problem of math is 5/6,7/9,23/27,13/18?
Answered by Penny Nom. |
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Order from least to greatest |
2009-09-15 |
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From myra:
which list of number is ordered from least to greatest? A.) 0.035,0.35,2/5,2.5 B) 2.5,2/5,0.35,0.035 c)2/5,0.35,2.5,0.035 D) 0.035,2.5,0.35,2/5
Answered by Penny Nom. |
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A trough of water |
2009-09-15 |
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From Darrell:
A trough that measures 4 feet long, 22 inches wide, and 18 inches high will be mounted
on a support stand. If the trough weighs 50 pounds when empty, approximately how many
pounds must the stand be able to hold when the trough is full of water?
Answered by Penny Nom. |
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Digging a trench |
2009-09-15 |
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From Darrell:
In digging a pipe trench that measures 29 feet long, 2 feet 9 inches wide, and 3 feet 6
inches deep, how many cubic yards of earth were removed from the site?
Answered by Penny Nom. |
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A sequence |
2009-09-15 |
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From Derek:
what are the next four numbers in this sequence 1/8, 1/4, 3/8, 1/2...
Answered by Penny Nom. |
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A trillion grains of rice |
2009-09-14 |
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From akaila:
can 1trillion rice grains fit in a classroom with the area of 144.4m3
Answered by Penny Nom. |
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Quotient |
2009-09-14 |
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From Jala:
What is a quotient and what are the instructions for one?
Answered by Penny Nom. |
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Friends in a class |
2009-09-14 |
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From pran:
it is known that among any group of three students in a class two of them are friends. the total number of students is 25. prove that there is a student who has at least 12 friends
Answered by Claude Tardif. |
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The nth term of a sequence |
2009-09-11 |
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From Michael:
My son has this question as part of his key stage 3 maths homework-
The nth term of a different sequence is n - 2/n^2.
We've got to find the first three terms of the sequence.
Answered by Claude Tardif. |
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Domain and range |
2009-09-11 |
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From Aubrey:
I'm supposed to "state the domain/range of each of the following relations" and it's totally not making sense...
Examples:
{(x,y) : x = square root of y}
{(x,y) : y = x + 1, x is some even integer}
Thanks in advance!!
Aubrey
Answered by Robert Dawson. |
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Average speed |
2009-09-11 |
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From john:
Sally travels by car from one city to another. She drives for 20.0 min at 68.0 km/h, 40.0 min at 37.0 km/h, and 51.0 min at 77.0 km/h, and she spends 12.0 min eating lunch and buying gas.
What is the average speed for the trip?
Answered by Penny Nom. |
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The slope-intercept form |
2009-09-11 |
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From Shelby:
Write an equation in slope-intercept form of the line that is parallel to the graph of 3y-4x=1 and passes through (0,6)
Answered by Penny Nom. |
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Jogging and swimming |
2009-09-11 |
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From Brandon:
Trevor swims jogs 3 days and swims every 4 days. How often does he jog and swim on the same day
Answered by Leeanne Boehm. |
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