Critical Thinking
The Thunderbolt roller coaster has 6 cars, and
each car has 8 seats. The Thunderbolt completes
10 rides per hour. If
p= the number of people
who ride the Thunderbolt in 1 hour, which of
the following statements about the Thunderbolt
cannot be true? Explain your reasoning.
A.p< 500
B.p> 450
C. = 250
p
2
In This Chapter You Will:
●Use math symbols to express word
sentences as inequalities
●Graph inequalities on number lines
●Write inequalities for graphs
on number lines
●Solve inequalities using the Addition,
Subtraction, Multiplication, and Division
Properties of Inequality
●Apply the strategy: Find a Pattern
●Look for new vocabulary words
highlighted in each lesson
●Mathematical expressions can be
numerical expressions or algebraic
expressions.
●To evaluate an algebraic expression,
substitute given values for the
variables, and compute according
to the order of operations.
●The absolute value of a number is its
distance from 0 on a number line.
●Algebraic equations can be solved
by using the Properties of Equality.
●Skills Update Practice
●Practice Activities
●Audio Glossary
●Vocabulary Activities
●Calculator Activities
●Enrichment Activities
●Electronic SourceBook
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