# Solve for the value of the consant of variation k, and then find the missing value. 1.)z varies jointly as the square root of the product of x and y, if z=3 when x=3 and y=12, find x when z=6 and y=64 2.)d varies jointly as h and g. if d=15 when h=14 and g=5, find g when h=21 and h=8. 3) q varies jointly as r and s. if q=2.4, when r=0.6 and s=0.8, find q when r=1.6 and s=.01

1
by unknownoo

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2015-09-04T07:19:51+08:00

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1)

2.  d = k (h)(g)
15 = k (14)(5)
15 = k (70)

use the equation :

d = 3/14 (h)(g)   for the next set.  check that your values has no d, but 2 h's

3)  q = krs
2.4 = k (0.6) (0.8)
2.4 = k (0.48)﻿
0.48       0.48
k = 5

q = krs
q = 5 (1.6) (0.01)
q = 0.08

you're welcome. keep practicing :-)
Please note that in number 2, there are two values for h, and none for d. Just follow the equation for set 2
i don't know how o solve number 2. i don't know how. ;(
i don't know how to solve number 2. i don't know how. ;(
Check the values for h and d. Go back to your notes. maybe topographical error. The post the question again. Not in this comment box. Post it in "ask a question"