Solutions to Quiz 2
www.math.ufl.edu/˜harringt
February 2, 2007
1.
(1 pt)
Convert the following to a fraction: 0
.
36
Solution:
x
=
0
.
36
100
x
=
36
.
36

x

.
36
99
x
=
36
x
=
36
99
=
9
*
4
9
*
11
=
4
11
2.
(1 pt)
You were on a date, and the bill came to $42
.
60. You thought the service was fair
and so you gave a 15% tip. How much money did you leave for the tip?
Solution:
First, note that 10% of $42
.
60 is $4
.
26.
Second, note that 5% of $42
.
60 is
$4
.
26
2
= $2
.
13
Hence, 15% of $42
.
60 is $4
.
26 + $2
.
13 = $6
.
39
3.
(1 pt)
Determine whether the following statement makes sense or not.
(a) I’ve decreased my caloric intake 125%, which has helped me lose weight.
Does not make sense. You cannot lower caloric intake below 100%.
(b) I needed five acres of water to fill the swimming pool.
Does not make sense. Acres describes area, while you need volume to describe how
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 Spring '08
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 Fractions, Blackandwhite films, Elementary arithmetic, Greatest common divisor

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