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The city transit system 2001-01-07
Jacky pose la question :
The city transit system carries an average of 9450 bus riders a day, for a fare of $1.75 each. The city wants to reduce car pollution by increasing ridership and to maximize the transit system's revenue at the same time. A survey indicates that the number of riders will increase by 150 for every $0.05 decrease in fare.
Harley Weston lui répond.
Women mathematicians 2001-01-07
Kisha pose la question :
Can you please tell me names of at least five female math teachers who changed history back then?
Penny Nom lui répond.
Derfs, Enajs and Sivads 2001-01-07
John and Norman pose la question :
All Derfs are Enajs. One-third of all Enajs are Derfs. Half of all Sivads are Enajs. One Sivad is a Derf. Eight Sivads are Enajs. The number of Enajs is 90. How many Enajs are neither Derf nor Sivad?
Penny Nom lui répond.
A dollar, quarter, dime, nickle and penny 2001-01-07
Sarah pose la question :
Arnold has a dollar coin, one dime, one quarter, one nickel, and a penny. The number of different sums of money that can be formed using three coins is...
Penny Nom lui répond.
The pythagorean theorem in everyday life 2001-01-06
Josh pose la question :
What are some ways that we use the pythagorean theorem in jobs, or even in everyday life?
Claude tardif lui répond.
Two questions 2001-01-04
Justine pose la question :
first: A diagonal of a rectangle is the square root of 13 meters and the area of the rectangle is 6 meters squared. What are the dimensions of the rectangle?

last: Find the ordered triple of nonzero digits (A,B,C) for which (AA)squared=BBCC where AA and BBCC are respectively, two-digit and four-digit base-ten numerals.


Penny Nom lui répond.
Radical de n 2001-01-03
Un eleve pose la question :
j'aimerai savoir ( d.Levy), élève de 1éS ce que signifie la phrase: radical de 2 + radical de 3 est un nombre négatif ( niveau intérmédiaire).
Claude Tardif lui répond.
Three dice 2001-01-03
John Read pose la question :
I have three dice (A, B, C.) Three sides of each dice are blank. Three sides of each dice have a number. When the dice are thrown, it must be possible to result in the numbers 1 to 49 in any combinations without doubling up on any figure. i.e. Different combinations resulting in the same end number. I managed to get from 1 to 47 before getting stuck.
Claude Tardif lui répond.
Why the change from commas between every 3rd digit, to spaces instead? 2001-01-03
Clarende Duby pose la question :
Why the change from commas between every 3rd digit, to spaces instead? For example: Three million three hundred thirty-three thousand three hundred thirty-three written like: 3 333 333 instead of 3,333,333? Does it have something to do with standardizing mathematical notation worldwide?
Harley Weston lui répond.
30% of 80 2001-01-03
Denise pose la question :
Could you please tell me what 30% of 80 is?
Penny Nom lui répond.
The laws of sines and cosines 2001-01-02
Faydene pose la question :
Can the sine /cosine rule be applied to a right -angle triangle to find a particular solution or are these 'rules' applied only when the triangle is not right angled?
Penny Nom lui répond.
Filling a tank 2001-01-02
Liting pose la question :
Water flows into a rectangle tank which measures 4 m by 3 m by 2.8 m through a cylindrical pipe of radius 2.4 cm. If the rate at which the water flows into the tank is 8 km/h, find how long it takes to fill the tank.
Penny Nom lui répond.
Polite numbers 2001-01-02
A student pose la question :
A positive whole number, greater than 1, is said to be a polite number if it can be expressed as a sum of consecutive whole numbers

Find all the polite numbers less than 21. Find a pattern in the numbers that are not polite. Explain why every odd number greater than one must be polite.


Penny Nom lui répond.
A quarter-circle and two semi-circles 2000-12-31
Christopher pose la question :
Inside the quarter-circle are two semi-circles with the same radius, (r). Which has a greater area, G or L?
Penny Nom lui répond.
Height of the lamp 2000-12-31
Joey pose la question :
The figure shows a lamp located three units to the right of the y-axis and a shadow created by the elliptical region x2 + 4y2 < 5. If the point (-5,0) is on the edge of the shadow, how far above the x-axis is the lamp located?
Harley Weston lui répond.
 
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