chapter 2 voc equation solution inverse expression
DESCRIPTION
Writing & Describing Algebraic Expressions 5 + x MORE THAN Less ThanTRANSCRIPT
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Chapter 2 voc
EquationSolution
Inverse Expression
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2-2
Translating Between Words and Math
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Writing & Describing
Algebraic Expressions
5 + x
MORE THAN
Less Than
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Variable: a symbol that stands for a number.
Examples: a, b, x, y, …...
Algebraic Expressions: a group of numbers, variables, and operations.
Examples: 13 - g z + 2 3x + 8
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Add Subtract Multiple Divideplus minus the product the quotient
Combined, together
the difference
multiply, times
divide
the sum subtract groups of into
total of *less than times each, for every
increased by
decreased by
double, triple
per
*more than fewer than Twice out of
additional how much more than..
of shared equally
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Examples: 3 less than a number
n - 3
The sum of 5 and a number
5 + b
The product of 7 and y
7y
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Rules:
• Write each problem the way you read the words from left to right.
• “more than” OR “less than” means flip the problem parts.
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Write an algebraic expression for each word phrase.
1. The sum of eighty-nine and a number.2. The difference between forty-six
and h.3. The quotient of twenty and a number.4. Fifty-five times f.
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Write an algebraic expression for each word phrase.
1. one more than the product of twelve and a number Answer: 12p + 1
2. four less than a number n divided by two Answer: n ÷ 2 - 4
3. Six minus the quotient of u and two
Answer: 6 – u ÷ 2
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Translate each algebraic expression into words.
1. 3 + n Answer: 3 more than a number
2. 7h Answer: the product of 7 and h
3. a – 5 **use the word “less than” Answer: 5 is less than a
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Translate each algebraic expression into words.
4. 4b – 3Answer: 4 multiplied by b minus 3 OR three less than the product of four and b
5. 16g + 12Answer: The product of 16 and g plus 12 OR Sixteen times g plus 12
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2-3 Translating Between Tables and
ExpressionsI can write expressions for
tables and sequences
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Function Tables
w w ÷ 11 n 4 x n + 6
55 1
66 2
77 3
Evaluate each expression to find the missing value in each table.
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Evaluate each expression to find the missing value in each table.
n 2n - 2
1
6
7
n 25 - n20 55 18 9
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Find an expression for each table.
x 0 072 988 11
n 15 4025 5035 60
x ÷ 8 n + 25
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Find an expression for each table.
n
13 26
9 18
30 60
25 50
x
8 6
4 2
2 0
2n x - 2