1.
If
y
varies directly as
x
and
y
= 35 when
x
= 5, find
y
when
x
= 11.
A.
41
B.
C.
77
D.
7
Hint
2.
If
y
varies directly as
x
and
y
= 21 when
x
= 5, find
x
when
y
= 42.
A.
10
B.
5
C.
4.2
D.
21
Hint
3.
If
y
varies inversely as
x
and
y
= 6 when
x
= 24, find
x
when
y
= 12.
A.
24
B.
144
C.
48
D.
12
Hint
4.
If
y
varies inversely as
x
and
y
= 15 when
x
= 3, find
y
when
x
= 9.
A.
5
B.
15
C.
45
D.
3
Hint
5.
Jim's wages vary directly as the numbers of hours he works. For 7 hours, he makes $38.85. How much will he make in 37 hours?
A.
$1437.45
B.
$207.20
C.
$194.25
D.
$205.35
Hint