Posted by Juliette on Monday, December 8, 2008 at 4:38pm.
Could someone show me how to solve this joint variation problems?
Y varies jointly as x and y and inversely as w. Write the appropriate combined variation equation and find z for the given values of x, y and w. z=15 when x equals three, y equals four, and w equals nine, x equals 1.5 y equals 20.5 and w equals 5.4 (I don't know how to do a variation that is both joint and inverse).
Z varies jointly as x and y and inversely as w.. Write the appropriate combined variation equation and find z for the given values of x, y and w. y equals 120 when x equals eight and z equals 20; x equals 54 and z equals seven. (same problem as the last one).
If x1, y1 and x2, y2 satisfy xy=k, then x1y1 equals x2y2. 3,y and 18,6 (I am confused how x1y1=x2y2, yet the y values are differing). How do you find x or y for this?)
~Thanks for your help, Juliette
- algebra - bobpursley, Monday, December 8, 2008 at 4:48pm
20=k(120*8)/20 find k
On the second part, (after the semicolon), y is not mentioned.
x1y1=k=x2y2 because xy=k for any x,y.
3y=18*6 solve for y.
- blgs anifjut - blgs anifjut, Saturday, January 17, 2009 at 3:32am
qtervgpoc uwcfsi tpew yqwfeix pcenu amkq vwbkjd
Answer this Question
algebra - can any one show me where to get free online help with algebra? i need...
algebra - Can someone show me the step to solving this equation because I am ...
Algebra 1 - Could someone help me this is what you have to do. Determine the x- ...
math/ algebra 1 - can someone please help me explain how they got this answer ...
algebra - Can someone show me how to use the quadratic formula to solve this ...
math,algebra - can someone help me create one statement in english representing ...
algebra - can someone help me to show how to solve -x+y=3
algebra - Can someone show me how this would be simplifyed? 5^1/2 * 5^1/4
algebra 1 - can someone show me how to graph this x+4y=8
algebra 1 - a number is less than one fourth of the sum of three times the ...