Math
posted by Loomin .
Determine which ratio forms a proportion with 9/5 by finding a common multiplier?
54/30
45/50
45/40
90/20
Determine which ratio forms a proportion with 12/7 by using cross products?
60/35
24/10
36/14
18/14
Which ratio can from a proportion
20/25,14/21
10/23,18/7
5/45,4/36
5/4,4/5

Math 
Ms. Sue
9/5
The numerator is almost double the denominator. That eliminates three of the answers.
54/30 54/9 = 6; 6 * 5 = 30. Yep; this is right.
45/50
45/40
90/20
You can use the same reasoning on the other two problems. 
Math 
Hi
det

Math 
!
Determine which ratio a proportion with 14/35 by writing the ratio in simplest form.
A 2/7
B 4/5
C 3/8
D 2/5
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