1. No category

3/20/2014
Wednesday, 3/19
Bellwork 3/19
You Need:
On your desk to be checked during bellwork:
Assignment #41: Pg 196 #1-11 ODD
1. What is the difference between a
rate and a unit rate?
2. What do you think is more useful, a
rate or a unit rate? Why?
3. How can unit rates help us find the
best deal when shopping?
Explain…with examples!
Math Notebook Table of Contents
Assignment
#
Title
38
39
40
41
42
Pg. 172 #24-32
Bellwork 3/17-3/20
4.2 Rates
4.2 Practice
Pg 196 #1-11 ODD
4.3 Identifying and Writing Proportions
Pg 196 #1-11 ODD
AND Pg 196 #1-11 ODD
1
3/20/2014
41
4-2 Practice
5. June runs 600 yards in 2 min 5 sec.
What is her average speed?
6. A plane travels 294 miles in 45 minutes.
What is its average speed in miles per hour?
4-2 Practice C
7. A pitcher’s earned run average is the number of
earned runs allowed per game of 9 innings.
A pitcher allows 20 earned runs in 50 innings.
What is the pitcher’s earned run average?
4-2 Practice C
Practice C
1.
2.
3.
4.
5.
6.
7.
8.
10.
$25.35
$31.60
or
6.5 lb
8 lb
11.
$9.16
$13.20
or
0.4 m
0.6 m
$17.25 per hour
75 calories per ounce
3.8 envelopes per minute
57.8 miles per hour
4.8 yards per second
392 miles per hour
3.6 earned runs per game
$0.18 per oz; $0.17 per oz;
4-2 Practice C
1-2
3-4
5-7
8-11
$8.16 is the better buy.
48 oz
9. $1.29 per ft; $1.32 per ft;
$9.03 is the better buy.
7 ft
10. $3.90 per lb; $3.95 per lb;
$25.35 is the better buy.
6.5 lb
11. $22.90 per m; $22 per m;
$13.20 is the better buy.
0.6 m
41
Pass back fraction test!
4-2 Practice
4-2 Practice C
4-2 Problem Solving
2
3/20/2014
4-2 Problem Solving
1.A truck driver drives from Cincinnati
to Boston in 14 hours. The distance
traveled is 840 miles. What is the
truck driver’s average rate of speed?
2. Melanie earns $97.50 in 6 hours. Earl
earns $296.00 in 20 hours. Who
earns a higher rate of pay per hour?
4-2 Problem Solving
3. Mr. Tanney buys a 10-trip train ticket
for $82.50. Ms. Elmer buys an
unlimited weekly pass for $100
and uses it for 12 trips during the
week. Write the unit cost per trip
for each person.
4. Metropolitan Middle School has 564
students and 24 teachers. Eastern
Middle School has 623 students and
28 teachers. Which school has the
lower unit rate of students per
teacher?
3