3-6 Solve It!
Average Annual Orange Tree Production
(number of boxes per year)
The diagram shows the number of
boxes of oranges that an orange
tree can produce in 1 year. An
orange grower earns $9.50 for each
box of oranges that he sells. How
much could the grower expect to
earn in 1 year from 1 tree? Explain
your reasoning.
Hmm . . . Can you
predict the exact
amount?
0
1
2
3
5
4
1.3
4.0
amic Activity
3-6 Lesson Quiz
1. Write the phrase “all real numbers that are greater than 24
and less than or equal to 7” as a compound inequality.
2. What are the solutions of 21 # x 2 3 , 4? Graph the
solutions.
2x 2 4
1
3. What are the solutions of 5 ,
, 6?
3
4. Do you UNDERSTAND? To earn a fitness award, your average
heart rate while walking must be between 80 and 89 beats
per minute, inclusive. Suppose you recorded 85, 81, and 87
beats per minute on your first three recordings. What are
the possible heart rates you can have on the fourth and final
recording in order to earn a fitness award?
5. What are the solutions to 3n 2 1 . 8 or 4n 1 3 , 21?
Graph the solutions.
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Answers
Solve It!
5. n , 21 or n . 3
Lesson Quiz
Between $12.35 and $38;
explanations may vary.
1. 24 , x # 7
2. 2 # x , 7
1 0
1
3
3.2 10 , x , 11
0
5 4 3 2 1
2
3
4
5
6
7
8
1
9
4. between 67 and 103 beats
per minute inclusive
Prentice Hall Algebra 1 • Solve It/Lesson Quiz on Transparencies
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