Transcript More Expressions and Equations

Steve Blaylock
Lakota West Freshman
2009 - 2010
Key Words
 Addition Key words
 Increased by
 More than
 Sum
 Total of
 Subtraction
 Decreased by
 Minus
 Less than
 difference
 Multiplication Key words
 Of
 Times
 Product
 Division Keywords
 Per
 Out of
 Ratio
 quotient
 Equality Keywords
 Is
 Are
 Was
 Were
 Will be
Some problems have more than
one unknown.
 Example 1: The cost of a main-floor seat is three times
as much as the cost of a balcony seat. Write an
expression showing the total cost for one seat of each
type.
Example 2:
 A hardback book costs $7 more than a paperback
book. Give an expression that shows the total cost of
one paperback book and three hardback books.
Example 3:
 The sum of three consecutive odd integers is 249.
Write an equations that can be used to find the
numbers.
 Write an expression that can be used to find the sum
of an even integer, half of the next even integers, and
one-fourth of the next even integer.
Equations for Solving Problems
 Manuel scored 35 points fewer in his second bowling
game than in his first game. His total score for the two
games was 395. How many points did he score in each
game?
One More Problem
 Mr. Blaylocks age is half as old as his Dad’s (also Mr.
Blaylock) age plus four. The sum of their ages is 76.
How old are they?