Page 99 - Math Course 1 (Book 1)

Expressions Containing Variables

Translate the phrase the difference of six times a Your Turn!
number and ten into an algebraic expression.
Words the difference of six times a Translate Verbal Phrases into
number and ten. Expressions

Translate the phrase eight less than the
Variables Let n represent the number number of cookies baked into an
algebraic expression
the difference of six times a number and ten
A. c - 8
Expression 6n 10 B. 8 - c
C. -8 - c
D. -c - 8

Answer The expression is 6n – 10.
Answer

REAL WORLD EXAMPLE

THEATER Translate the phrase the sum of twelve
and f ve times a number into an
East Middle School sold tickets for a school algebraic expression.
play. The price of an adult ticket was $3, and the
price of a student ticket was $1. Write an expression that A. 12(5 + n)
represents the total amount of money collected. B. 12 + 5 + n
C. 12 + 5n
D. 17n
Words $3 for an adult ticket and $1 for a
student ticket. Answer

Variables Let a = number of adult tickets and
s = number of student tickets.

$3 for an adult ticket and $1 for a student ticket
Expression 3a + 1s

The expression 3a + 1s can be
Answer used to f nd the total amount of
money collected.

RETAIL
The Read It Bookstore is advertising a sale. The price of hardback books is $9.50 and the
price of paperback books is $4.50. Write an expression that can be used to f nd the total amount of
money spent at the bookstore.

A. 9.5 + 4.5
B. (9.5 + 4.5)hp
C. h + p
D. 9.5h + 4.5p

Answer

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