Friday

August 29, 2014

August 29, 2014

Posted by **Lorie** on Saturday, April 6, 2013 at 9:06am.

A quantity, W, is directly proportional to X and the square of Y and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and Z=6? Give answer to 3 decimal places.

Thanks in advance. I do not know much about inverse proportions.

- College math -
**Henry**, Monday, April 8, 2013 at 7:35pmW = KXY^2/Z^3 = 3

K4*2^2/4^3 = 3

16K/64 = 3

K/4 = 3

K = 12.

W = KXY^2/z^3 = 12*8*9^2/6^3 = 36.

**Related Questions**

college math - A quantity, W, is directly proportional to x and the square of y ...

college math - A quantity, W, is directly proportional to X and the square Y, ...

Extra Credit Projects - I'm doing some extra credit projects for all of my ...

math - t varies directly as the square root of l. If l=81, then t=10 what is the...

Science - Please Check 1.) If a quantity increases as a second quantity ...

Math - DIRECT VARIATION 1. a is directly proportional to b.If a=15,then b=9 2. m...

math - I went through and solved this problem plenty of times...and my answer ...

CHEMISTRY - When we combine the three gas laws into one expression: V is ...

Language Arts Extra Credit - What is llatetpsh unscrambled. I seriously need ...

English 7 - Extra Credit Project (PLZ READ!) - What is Rachel Renee Russell ...