1.
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.
$194.25
B.
$207.20
C.
$1437.45
D.
$205.35
Hint
2.
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
3.
Use the direct variation equation
y
= 22
x
to find
x
when
y
= 88.
A.
B.
C.
x
= -4
D.
x
= 4
Hint
4.
Use the direct variation equation
to find
x
when
y
= -34.
A.
x
= -
B.
x
= 153
C.
x
= -153
D.
x
=
Hint
5.
If Dale Jarrett drives his car 1760 feet on the racetrack in 6 seconds, about how long will it take him to drive 2640 feet, a half mile?
A.
6 minutes, 40 seconds
B.
9 seconds
C.
18 seconds
D.
18 minutes
Hint