Intro
Your friend leaves you a message about your
vacation plans. They listened to your
answering and left this message. Your friend
does not speak English very well.
YOUR FLIGHT DEPARTS CHICAGO AT 5 PM
TOMORROW YOU WILL BE IN LONDON BY 8
AM IN THE MORNING YOU MUST CALL THE
AIRLINE TO CONFIRM THIS CHANGE.
1. When is the plane leaving, today or
tomorrow?
2. When are you supposed to call the
airline?
3. What can happen if words are translated
to paper in a different way than they are
intended?
Numeric expression- A mathematical sentence
without an equal sign. Made up of numbers,
grouping symbols and operations.
Algebra – A language of symbols.
Algebraic expression – an expression where
variables and numbers are joined by any
combination of the four basic operations (+, -,
x, /).
Variable – a placeholder for any value. Any
letter
(n, m, j, x) can be used to represent an
unknown quantity in an expression.
Objective: Students will
translate words into algebraic
expressions.
1. John biked 8 miles less than Zack. If
Zack bikes m miles, what algebraic
expression represents the number of
miles John bikes?
M-8
2. Alex types 13 words per minute
faster than Michelle. If Michelle types t
words per minute, what algebraic
expression represents the number of
words per minutes that Alex types?
T + 13
3. Smith wireless charges three-fifths of
the sum of twenty-five and the number
of outbound call, g, for their cell phone
service. Write an expression to find the
cost of cell phone service.
3
25 + 𝑔
5
4. Martin rode his bike 17 miles shorter
than four times the distance Mike rode, r.
Write an expression to find the distance
Martin rode.
4𝑟 − 17
5. Cornet Cable charges $32.50 a month
for basic cable television. Each premium
channel, p , selected costs an additional
$4.95 per month. Write an expression to
find the cost of cable service.
4.95𝑝 + 32.50
6. Jack and his five friends split thirty
fewer skittles than 4 bags of skittles, s.
write an expression to find out how many
skittles each person received.
(4𝑠 − 30) ÷ 6
Sage and Scribe
Algebraic expression check