Six students brought money for the school field trip to
Flagler’s Museum. Their teacher plotted the smallest and
largest amounts of money brought by the students.
3
4
5
6
7
8
9
10
Let m represent the money brought by the students.
Based on the graph above, which inequality best describes
the range of possible values of m ?
A. 4  m  9.5
B. 4  m  9.5
C. 4  m  9.5
D. 4  m  9.5
Since the circle is
closed, then m must be
greater or equal to 4…
…and less then or equal
to 9.5.
A baseball player’s batting average can be determined
using the following equation where a represents the
batting average, n, represents the number of at bats, and
h, represents the number of hits.
a  hn
What would be a player’s batting average if he had 40 at
bats and had 18 hits?
Use the given
formula…substitute 40
at bats for n and 18
hits for h and
calculate his average…
a  18  40
a  .450
The average speed that you drive on a trip can be
determined using the formula:
d  rt
Where d represents distance traveled, r represents the
rate of speed, and t represents the time traveled. If you
drove 520 miles in 8 hours, what was the average speed at
which you traveled?
Divide each
520  r 8
Use the given
side of the
formula…substitute
8
8 equation by 8…
520 miles for d and 8
65mph  r
hours for t and
calculate the rate of
speed…

Evan wants to buy tokens to play video games at the local
arcade. He already has 18 tokens left over from his last
visit. For each dollar that Evan puts into the token
machine, he receives 16 tokens. The equation below can be
used to determine the total number of tokens Evan will
start with based on d, dollars that he brings with him to
the arcade.
t  16 d  18
How many tokens will Evan have if he brings 3 dollars to
the arcade?
Use the given
formula…substitute
3 dollars for d,
use PEMDAS to
solve the equation
for t, tokens
t  163  18
t  48  18
t  66
6 6
Pets-R-Us sells fish for freshwater aquariums. They sell
Tiger Barbs for $0.95 each and Goldfish for $0.65 each.
The equation below can be used to determine how much
money Heidi, h, will spend on fish, where t represents Tiger
Barbs and g represents Goldfish.
h  0.95t  0.65g
How much will Heidi spend if she buys 6 Goldfish and 3
Tiger Barbs?
Use the given
formula…substitute 3
for t (Tiger Barbs)
and 6 for g (Goldfish)
use PEMDAS to solve
for the total Heidi
spends…
h  0.953  0.656
h  2.85  3.90
h  $6.75
6 . 7 5