1.
If
y
varies directly as
x
and
y
= 35 when
x
= 5, find
y
when
x
= 11.
A.
77
B.
41
C.
7
D.
Hint
2.
If
y
varies directly as
x
and
y
= 21 when
x
= 5, find
x
when
y
= 42.
A.
10
B.
21
C.
5
D.
4.2
Hint
3.
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.
$207.20
B.
$194.25
C.
$1437.45
D.
$205.35
Hint
4.
Suppose
y
varies directly as
x
, and
y
= -65 when
x
= -26. Write a direct variation equation that relates
x
and
y
.
A.
B.
C.
D.
Hint
5.
Use the direct variation equation
to find
x
when
y
= -34.
A.
x
= 153
B.
x
=
C.
x
= -
D.
x
= -153
Hint