  Centrale des maths - centraledesmaths.uregina.ca  Dilemmes & doutes    « D & D »    Sujet: inversely   nouvelle recherche

6 articles trouvés pour ce sujet.    Page1/1            If 4 cooks can bake 8 pies in 6 hours????? 2013-03-18 Kenneth pose la question :Hello: I want to determine which quantities are directly and inversely proportional in order to determine the answer for the following:. If 4 cooks can bake 8 pies in 6 hours, 2 cooks can bake how many pies in 4 hours? Answer: 2 2/3 pies Can someone fully explain what I need to know in order to determine what is directly and inversely proportional in the example above? I thank you for your reply.Robert Dawson lui répond.     The length is inversely proportional to the width 2012-03-18 David pose la question :For a given set of rectangles, the length is inversely proportional to the width. In one of these rectangles, the length is12 and the width is 6. For this set of rectangles, calculate the width of a rectangle whose length is 9Penny Nom lui répond.     If x ix directly proportional to y then ... 2012-02-19 Crystal pose la question :I understand that we say x and y are proportional, then y = kx. Generally when we say x is proportional to y, we think that when x increases y increases. Now I am questioning whether that is actually true. If k is negative, then when x increases, y DECREASES. My question is does this mean this statement is incorrect: If x is proportional to y, when x increases, y increases proportionally. Is it more correct to say: If x is proportional to y, when x increases, y either increases proportionally or decreases proportionally. Along the same line of reasoning, when x is inversely proportional to y, we think that when x increases y decreases, but that is true only if k is positive. Is that correct?Harley Weston lui répond.     Direct, inverse and indirect proportionality 2009-03-04 Brian pose la question :My 14 year old is confused about indirectly proportional and inversely proportional. On searching on the internet we were directed to: http://mathcentral.uregina.ca/QQ/database/QQ.09.00/ellis1.html Here leanne starts explaining indirectly proportional and ends up describing inversely proportional. Has Leanne got it wrong ? What is indirectly proportional. Thanks BrianChris Fisher lui répond.     y varies jointly as x and the square of z and... 2009-01-05 peter pose la question :I don't really get the terms in this problem. Could you explain it: If y varies jointly as x and the square of z and inversely as the cube of w, by what factor is y increased when z is doubled and w is divided by 3 and x remains the same?Harley Weston lui répond.     Proportionality: direct and indirect 2001-01-18 Nancy Ellis pose la question :What is the difference between directly proportional and indirectly proportional?Leeanne Boehm lui répond.      Page1/1    Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.    Qui sommes-nous :: carte du site :: our english site