1,. A warehouse manager's computer showed
that there were 393 baseballs in stock. The
baseballs were all in full boxes of 4 and 12.
The manager claimed the computer's count
was wrong. The manager was correct because
393 is not divisible
by ?
In a candy factory, an average of 3 pieces of
candy out of eyety n pieces tested are rejected.
\Atrhat fraction of those n pieces is NOT
rejected? (Lesson 4-5)
eDt
.(Lesson 4-4)
(n-71"'
@3
@4
(B)'
CO6
@gn
J
@8
(D\' (n-i\-',
2. What value of r will
make
2x:128
n
true?
4. If the pattern below
continues, what is the
value of the eighth term? (Lesson 4-7)
't3 '>2
L , L , L'tI| ...
@ 0.0625
@ 0.312s
5.
The distance from Earth to Pluto is 4.58 X 10e
kilometers. In 1983, Pioneer 10 transmitted
radio signals from Pluto to Earth at the speed
of light, 1.08 x 10e kilometers per hour.
Approximately how long did it take for the
signals to reach Earth? (Lesson 4-8)
@
o
(E) 4.24h
2h
a)
s.15 h
will
0.5
When bacteria reproduce, they split so that
one cell becomes two. The number of cells
after t cycles of reproductions is 2t. E. coli
reproduce very quickly, about every 15
minutes. If there are 50 E. coli in a dish now,
how many will there be in 60 minutes?
Three eighths of the student body are girls.
One fifth of the girls wear glasses. What
fractional part of the student body are girls
who wear glasses? (Lesson 5-3)
CA) "
40
)
G): J
be after one hour?
{Lesson 4-2)
<D 25
(E) 212
0.125
6.72h
In biology class at
North Carolina State
University, jackson
was studying a
certain type of
bacteria that doubles
every 5 minutes, as
shown in the table.
Which expression
represents how many
bacteria there
6.
@
@
@
2to
aE)
260
NCB North Carolina Pre-Algebra
@+
@+