1. lesson 39.notebook
Assignment:
1­­>Set 39 (odds) ­ Due Tomorrow [11/12]
2­­>Test signed?
November 11, 2013

2. lesson 39.notebook
Lesson 39 Warm­Up:
1)
Convert 5 minutes 52 seconds into seconds
2) The ratio of walkers to joggers at the track was 3 to 7.
What fraction of the athletes were walkers?
3)
Reduce: 720
1080
4)
Round 3184.5641 to 2 decimal places.
5)
Write 2% as a reduced fraction.
November 11, 2013

3. lesson 39.notebook
November 11, 2013
Lesson 39:
*A proportion is a statement that 2 ratios are equal.
*We can use "McDonald's Arches" to find
missing parts of a proportion!!
6
4
=
8 12

4. lesson 39.notebook
Examples (Lesson 39):
Solve each proportion.
A) a 6
12
8
B) 30 20
b 16
November 11, 2013

5. lesson 39.notebook
November 11, 2013
C) 14 c
21 15
D) 30
25
2.4
d

6. lesson 39.notebook
E) 30 n
100 40
F) m 9
100 12
November 11, 2013