1. Proportions Determine if the ratios can form a proportion. , b. a.
COURSE 2 LESSON 5-4
Proportions
Determine if the ratios can form a proportion. 8 6 9 7 , b. a. 4 10 15 4 10 6 15
Test the pair of ratios. 8 6 9 7
4 • • 6
Write cross products.
8 • • 9
60 = 60
Simplify. = /
Yes, and form a proportion. 4 10 6 15
No, and do not form a proportion. 8 6 9 7
5-4

2. Proportions Determine if the ratios can form a proportion.
COURSE 2 LESSON 5-4
Determine if the ratios can form a proportion.
, , , , 35 56 45 63 18 26 9 13 12 16 30 no
yes
yes no
5-4