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1921 Absolute Value Inequalities Real World Problems.notebook April 14, 2014
LT 3: I can represent realworld situations with equations,
p.19
inequalities, and absolute value.
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1921 Absolute Value Inequalities Real World Problems.notebook April 14, 2014
p.20
p.2021 (4, 6, 7, 9) p.2021 (all)
CW P
For a scholarship competition, Eva 2.
1.
Mars has a maximum temperature
had to write an essay. For the
of 7 at the equator and a
℃
essay Eva had to write more than
minimum temperature of 133 at
℃
the winter pole. Write an
250 words, but it couldn't exceed
inequality that describes the
500 words. Write an inequality
possible temperatures on Mars,
that demonstrates Eva's situation,
then graph it.
then graph it.
3.
4.
At a carnival, the cost to play a
Tom earns $50 to start a painting job
bowling game is $2 p lus $0.25 for
and $20 per hour to complete it. All
each attempt to knock over the pins.
jobs he accepts earn him at least
Which inequality would you use to
$300. If h represents the number of
find the number of attempts, a, you
hours spent painting, which inequality
can make if you have $10?
describes Tom's situation?
A. 0.25a + 2 ≥ 10
A. 50 + 20h > 300
B. 0.25a + 2 ≤ 10
B. 50 + 20h ≥ 300
C. 0.25a + 2 < 10
C. 50 + 20h < 300
D. 0.25a + 2 > 10
D. + 20h 00
50 ≤ 3
5. A blank CD can hold 70 minutes of
6.
You are stacking books on a shelf
music. So far you have burned 25
that has a height of 66 centimeters.
minutes of music onto the CD. You
Each book has a thickness of 4
estimate that each song lasts 4
centimeters. Write and solve an
minutes. Write and solve an
inequality to find the possible
inequality that shows the possible
numbers of books that you can
numbers of additional songs that
stack.
you can burn onto the CD, then
graph it.
1921 Absolute Value Inequalities Real World Problems.notebook April 14, 2014
8.
7.
At the TX Design Company, the
p.21
Caleb is a machinist at Golden
average starting salary for a new
Eagle Chopper Shop. To ensure
designer is $33,600, but the actual
the reliability of the motorcycle engines
salary could differ from the average by
produced at the shop, Caleb machines
as much as $1,560. Which inequality
each cylinder to a 4.01" diameter with a
could be used to determine if a salary,
tolerance of 0.0002". Which inequality
x, falls within this range?
could be used to determine if a
cylinder's diameter, x, is acceptable?
A. |x 1,560| ≤ 33,600
A. 4.01 x < 0.0002
B. x 33,600 ≤ 1,560
B. |x 4.01| ≤ 0.0002
C. |x 33,600| ≥ 1,560
C. |x 4.01| ≥ 0.0002
D. |x 33,600| ≤ 1,560
D. x 4.01 > 0.0002
10.
9.An essay contest requires that essay A candy manufacture puts 240
entries consist of 500 words with an pieces of candy into each bag. The
absolute deviation of at most 30 bag can be off by 8 pieces. Write
words. Write an absolute value an absolute value inequality that
inequality to represent this. displays the acceptable amount of
candy pieces that can be in a bag.
11. 12.
Which inequality has the solution
Which inequality is represented
represented by this graph?
by this graph?
1921 Absolute Value Inequalities Real World Problems.notebook April 14, 2014
Checking:
p.1718
Box 8
IF
Solve. Solve and graph.
|2x| + 5 = 3
|3x| + 4 ≤ 34
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