pythagoras123
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lilai3:
Group Title
Describe these parts of a comet: head, nucleus, coma, tail.
 updated 3 months ago
 1 reply
 No Medals Yet
Mathematics

pythagoras123:
Group Title
Points A and B are the respective x and yintercepts of the line y+xc=0. Given that the length of AB is 4 units, find the positive value of…
 updated 3 months ago
 23 replies
 3 Medals
Mathematics

cmenendez55:
Group Title
what is the slope of 4y=x+4
 updated 3 months ago
 1 reply
 1 Medal
Mathematics

pythagoras123:
Group Title
A rectangular block of clay measures 10 cm by 8 cm by 6 cm. Leonard used some of it to make three 4 cm cubes. He used the rest of the clay t…
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

pythagoras123:
Group Title
At an art exhibition, there were 280 men and 450 women in Hall A. In Hall B, there were 220 men and 665 women. Some men moved from Hall A to…
 updated 2 years ago
 7 replies
 No Medals Yet
Mathematics

Marzattack:
Group Title
what is 4.1 written in decimal form?
 updated 2 years ago
 6 replies
 2 Medals
Mathematics

pythagoras123:
Group Title
Geometrical Question: See attachment
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
Three different integers from 1 to 11 are selected. In how many of these combinations of 3 numbers are their sums a multiple of 3?
 updated 2 years ago
 29 replies
 4 Medals
Mathematics

selma:
Group Title
One pump can drain a pool in 7 minutes. When a second pump is also used, the pool only takes 5 minutes to drain. How long would it take the …
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
\left(\begin{matrix}5 \\ 7\end{matrix}\right)
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

pythagoras123:
Group Title
\huge \underbrace{\text{Hello!}}_{\text{Shayaan_Mustafa}}
 updated 2 years ago
 1 reply
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Mathematics

pythagoras123:
Group Title
\medium\underbrace{\text{99..99}}_{\text{2000 9s}}
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

pythagoras123:
Group Title
Solve
\[\frac{2 X 4 X 6 + 6 X 12 X 18 + 10 X 20 X 30 + 14 X 28 X 42 + 18 X 36 X 54}{1 X 3 X 5 + 2 X 6 X 10 + 4 X 12 X 20 + 8 X 24 X 40}\…
 updated 2 years ago
 5 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
Solve this algebraic equation, and show your working stepbystep.
\[\frac{180}{v}\] + \[\frac{9v 180}{1.2v}\] = 8
…
 updated 2 years ago
 6 replies
 1 Medal
Mathematics

pythagoras123:
Group Title
Algebra Question: Show your working and how you solve this equation, step by step.
…
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

pythagoras123:
Group Title
How many rectangles can be formed from a 5 X 6 grid? (see attachment)
 updated 2 years ago
 3 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
A teacher has 5 different presents to share among 3 students. He distributes the presents in three identical boxes (that cannot be distingui…
 updated 2 years ago
 19 replies
 No Medals Yet
Mathematics

Qwerty90:
Group Title
In a geometry class, the students were asked to prove the theorem below by contradiction.
Theorem: A triangle has at the most one obtuse…
 updated 2 years ago
 14 replies
 8 Medals
Mathematics

pythagoras123:
Group Title
The product 1 X 2 X 3 X 4 X ... X 2011 X 2012 = (18^a X b )where a and b are whole numbers. What is the largest value of a?
 updated 2 years ago
 30 replies
 6 Medals
Mathematics

Rmerlin:
Group Title
I need help asap..What does 1+2= thanks guys your a life saver
 updated 2 years ago
 21 replies
 6 Medals
Mathematics

pythagoras123:
Group Title
A language school has 100 pupils in which 69% of the pupils study French, 79% study German, 89% study Japanese and 99% study English. Given …
 updated 2 years ago
 6 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
A circle of circumference 1 m rolls around the equilateral triangle ABC of perimeter 3 m. How many turns does the circle make as it rolls ar…
 updated 2 years ago
 8 replies
 3 Medals
Mathematics

pythagoras123:
Group Title
Find the largest number n such that there is only one whole number that satisfies
\[\frac{8}{21}\] < \[\frac{n}{n+k}\] < \[\frac{5}{13}\]
 updated 2 years ago
 6 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
The inhabitants of an island are either gentlemen or liars. A gentlemen always tells the truth and a liar always lies. A, B and C are three …
 updated 2 years ago
 17 replies
 7 Medals
Mathematics

nona18:
Group Title
square root of 240
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
Geometrical question: Find the value of x
(see attachment)
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

pythagoras123:
Group Title
When a rectangular sheet of paper with length 8 cm is folded exactly into half, the ratio of its length to its width remains unchanged. If t…
 updated 2 years ago
 4 replies
 3 Medals
Mathematics

pythagoras123:
Group Title
The product of n whole numbers
1 x 2 x 3 x 4 x ... x (n1) x n, has twentyeight consecutive zeros. Find the largest value of n.
 updated 2 years ago
 21 replies
 2 Medals
Mathematics

pythagoras123:
Group Title
Peter and Jane take turns subtracting perfect squares from a given whole number and the person who subtracts the last number to get zero is …
 updated 2 years ago
 10 replies
 3 Medals
Mathematics

pythagoras123:
Group Title
See attachment:
 updated 2 years ago
 8 replies
 1 Medal
Mathematics
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