SOLUTION: 8. If y varies inversely as x. If y = 15 when x = 3, find y when x = 1. A. 45 B. 4.5 C. 18 D. 5 E. 1/5 F. 0.45 9. If p varies inversely proportional to q. If q = 6 whe

Question 1197998: 8. If y varies inversely as x. If y = 15 when x = 3, find y when x = 1.
A. 45
B. 4.5
C. 18
D. 5
E. 1/5
F. 0.45

9. If p varies inversely proportional to q. If q = 6 when p = 18, find q when p = 10.
A. 1/3
B. 3
C. 60
D. 10.8
E. 28
F. 180

10. If r varies inversely with w - 1. If r = 3/50 when w = 3, find r when w is 10.
A. 75
B. 10
C. 175
D. 1/75
E. 1/750
F. 1/175
Found 3 solutions by josgarithmetic, ewatrrr, MathLover1:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
The language for these works in a very consistent way.

8:

9:

10:
Seems to be saying, .
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
8. y varies inversely as x, 15*3 = y*1, y = 45
9. p varies inversely proportional to q, 18*6 = 10q, q= 108/10 = 10.8
10. r varies inversely with w - 1,
,
,
= 1/75
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
8.
If varies inversely as then

if when , then

formula:

find when

answer:
A.

9. If varies inversely proportional to .

If when ,

formula:

find when :

answer:
D.

10. If varies inversely with .

If when ,

formula:

find when is

answer:
D.

RELATED QUESTIONS
1) If w varies directly as z and w = 9 when z = -6, find w when z = 3. a) 0 b)... (answered by Alan3354)
6. If y varies inversely with x, and y = 5 when x = 8, what is k? 7. If y varies... (answered by solver91311)
If y varies inversely as x and y = 3 when x = 3, find y when x = 4. A. 1 B. 2.25 C.... (answered by htmentor)
I worked these problems out and i just want to verify if i got the correct answers,... (answered by sudhanshu_kmr)
If y varies inversely as x and y = 2 when x = 6, find y when x = 36 A) 1/6 B) 6 C) 3 (answered by stanbon)
if y varies inversely as x and y=5 when x=3 find x when y is... (answered by Cromlix)
If y varies inversely as x, and y=18 when x=3, find when... (answered by DrBeeee)
If y varies directly as x and y = 6 when x = 2, find y when x = 5. A. 5/3 B. 2.4 C.... (answered by ewatrrr)
#Please, I need you to answer everything because I only have one question and I'm going... (answered by josgarithmetic)