2.
WARM UP
Begin this warm-up as soon as you enter the classroom.
Make sure you have copied down your homework for
tonight, and that you have out your homework due today.
Finish (if you haven’t already) page 169 - 171: 1 - 14
Page 172: 23 - 27
Go get a puzzle from the back of the room and
work quietly.
3.
STANDARDIZED TEST
PRACTICE
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
a) t = 5(40) + 30
b) t = 5(40) - 5(30)
c) 40 + 30
d)5(40 + 30)
4.
STANDARDIZED TEST
PRACTICE
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
a) t = 5(40) + 30
b) t = 5(40) - 5(30) There are two
ways to
solve this!
c) 40 + 30
d)5(40 + 30)
6.
METHOD 1
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
7.
METHOD 1
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the total number of cars
washed. Then multiply the charge per car.
8.
METHOD 1
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the total number of cars
washed. Then multiply the charge per car.
t = charge per car x total number of cars washed
9.
METHOD 1
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the total number of cars
washed. Then multiply the charge per car.
t = charge per car x total number of cars washed
t = 5 (40 +30)
10.
METHOD 1
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the total number of cars
washed. Then multiply the charge per car.
t = charge per car x total number of cars washed
t = 5 (40 +30)
t = 5 (70) = 350
11.
METHOD 1
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the total number of cars
washed. Then multiply the charge per car.
t = charge per car x total number of cars washed
t = 5 (40 +30)
t = 5 (70) = 350
13.
METHOD 2
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
14.
METHOD 2
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the amount raised each day
then ﬁnd their sum.
15.
METHOD 2
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the amount raised each day
then ﬁnd their sum.
t = ﬁrst day amount + second day amount
16.
METHOD 2
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the amount raised each day
then ﬁnd their sum.
t = ﬁrst day amount + second day amount
t = 5 x 40 + 5 x 30
17.
METHOD 2
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the amount raised each day
then ﬁnd their sum.
t = ﬁrst day amount + second day amount
t = 5 x 40 + 5 x 30
t = 200 + 150 = 350
18.
METHOD 2
Your class held a two-day car wash. The class
washed 40 cars on the ﬁrst day and 30 cars on the
second day. The class charged $5 for each car. Which
equation can be used to ﬁnd t, the total amount of
money raised by the class?
Write an expression for the amount raised each day
then ﬁnd their sum.
t = ﬁrst day amount + second day amount
t = 5 x 40 + 5 x 30
t = 200 + 150 = 350
19.
WATCH, LISTEN & LEARN
TAKE NOTES!!!
http://www.algebra.com/algebra/homework/
Distributive-associative-commutative-properties/
The-Distributive-Property.lesson
20.
USING THE
DISTRIBUTIVE
PROPERTY
2 (50 + 6) =
10 (8.6 - 2.4)
38.
USING A FORMULA
The Hubble Telescope orbited Earth at a rate of about
4.78 miles per second. How far did the telescope
travel in 3 seconds?
D=?
r=?
t=?
39.
USING A FORMULA
The Hubble Telescope orbited Earth at a rate of about
4.78 miles per second. How far did the telescope
travel in 3 seconds?
Distance = rate x time D=?
r=?
t=?
40.
USING A FORMULA
The Hubble Telescope orbited Earth at a rate of about
4.78 miles per second. How far did the telescope
travel in 3 seconds?
Distance = rate x time D=?
r=?
D = rt
t=?
41.
USING A FORMULA
The Hubble Telescope orbited Earth at a rate of about
4.78 miles per second. How far did the telescope
travel in 3 seconds?
Distance = rate x time D=?
r=?
D = rt
t=?
D = (4.78)(3)
42.
USING A FORMULA
The Hubble Telescope orbited Earth at a rate of about
4.78 miles per second. How far did the telescope
travel in 3 seconds?
Distance = rate x time D=?
r=?
D = rt
t=?
D = (4.78)(3)
D = (5)3 - (.22)3
43.
USING A FORMULA
The Hubble Telescope orbited Earth at a rate of about
4.78 miles per second. How far did the telescope
travel in 3 seconds?
Distance = rate x time D=?
r=?
D = rt
t=?
D = (4.78)(3)
D = (5)3 - (.22)3
D = 15 - .66 = 14. 34
44.
USING A FORMULA
The Hubble Telescope orbited Earth at a rate of about
4.78 miles per second. How far did the telescope
travel in 3 seconds?
Distance = rate x time D=?
r=?
D = rt
t=?
D = (4.78)(3)
D = (5)3 - (.22)3
D = 15 - .66 = 14. 34 14.34 miles
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