Linear Applications
page 3.3  17
Section 3.3
Focus Exercises
You may need to do each of these on your own paper.
Instructions:
For each,
solve the application.
a)
Set up the legend;
b)
draw any necessary diagrams;
c)
identify the formula;
d)
set up a chart;
e)
solve the equation; and
f)
write a sentence answering the question.
1.
Sam got a score of 82 (out of 100 points possible) on his first algebra test.
After he took the second
test his average score was 87.
How many points did Sam get on his second test?
2.
Anthony received scores of 87 points and 85 points on his first two tests.
His goal, by the end of the
third test, is to have an average grade of 90 points.
How many points will Anthony need to score on
his third test to reach his goal?
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Linear Applications
page 3.3  18
3.
Kahlil had to deliver a package to the other side of Los Angeles.
He had to drive only 42 miles, but
his trip took him through downtown L. A., and he got stuck in some pretty heavy traffic.
Believe it or
not, it took him oneandahalf hours to get there.
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 Fall '10
 JanetFrewing
 Angles, Inch, Mercia

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