1.
If
y
varies inversely as
x
and
y
= 6 when
x
= 24, find
x
when
y
= 12.
A.
144
B.
24
C.
48
D.
12
Hint
2.
When Hipolito drives to Cleveland, he always arrives at exactly 5 o'clock. Therefore, if he leaves for Cleveland at 1:00, he can average 60 miles per hour. What time should he leave if he wants to average 75 miles per hour?
A.
1:48
B.
3:20
C.
1:40
D.
3:12
Hint
3.
Which of the following is not an example of inverse variation?
A.
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
B.
the number of computers a company gives if it has enough computers to give 24 people 1 computer, or 12 people two computers
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 distance covered if several different people drive 200 miles to the game at variable speeds
Hint
4.
If
y
varies inversely as
x
and
y
= 14 when
x
= 3, what is
x
when
y
= 84?
A.
2
B.
C.
6
D.
28
Hint
5.
If
x
varies inversely as
y
and the constant of variation is 24, what are
x
and
y
if it is true that
x
+
y
= 11?
A.
–6 and –4
B.
–3 and –8
C.
6 and 4
D.
3 and 8
Hint