1.
If
y
varies inversely as
x
and
y
= 6 when
x
= 24, find
x
when
y
= 12.
A.
12
B.
48
C.
24
D.
144
Hint
2.
If
y
varies inversely as
x
and
y
= 15 when
x
= 3, find
y
when
x
= 9.
A.
3
B.
15
C.
45
D.
5
Hint
3.
If
y
varies inversely as
x
and
y
= 4 when
x
=
, what is
y
when
x
= 3?
A.
B.
6
C.
24
D.
Hint
4.
Which of the following is not an example of inverse variation?
A.
the number of computers a company gives if it has enough computers to give 24 people 1 computer, or 12 people two computers
B.
the distance covered if several different people drive 200 miles to the game at variable speeds
C.
the number of running plays a football team can run if they elect to use 2 running backs for 8 plays each, or 1 running back for 16 plays
D.
the number of samples a store can give away if they give 1 free sample to each of 300 people, or decide to give 2 samples to 300 people
Hint
5.
What is the constant of variation if
y
varies inversely as
x
, and
x
= 4.3 when
y
= 2.15?
A.
2
B.
0.108
C.
D.
9.245
Hint