  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: inversely   start over

6 items are filed under this topic.    Page1/1            If 4 cooks can bake 8 pies in 6 hours????? 2013-03-18 From Kenneth: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.Answered by Robert Dawson.     The length is inversely proportional to the width 2012-03-18 From David: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 9Answered by Penny Nom.     If x ix directly proportional to y then ... 2012-02-19 From Crystal: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?Answered by Harley Weston.     Direct, inverse and indirect proportionality 2009-03-04 From Brian: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 BrianAnswered by Chris Fisher.     y varies jointly as x and the square of z and... 2009-01-05 From peter: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?Answered by Harley Weston.     Proportionality: direct and indirect 2001-01-18 From Nancy Ellis:What is the difference between directly proportional and indirectly proportional?Answered by Leeanne Boehm.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français