Ratios Flashcards
1
Q
What information ratio X/Y express?
A
a) x/y b) x/(x+y) c) y/(x+y)
2
Q
Do ratios provide actual values?
A
NO
3
Q
What info you need to determine the ratio multiplier?
A
- when one quantity is know 2. when total quantity is known
4
Q
A:B = 5:6, A:C = 1:2, so A:B:C = ?
A
5:6:10
5
Q
Do ratios share properties of fractions?
A
Yes as they are synonymous to fractions
6
Q
What are proportions?
A
two equal ratios (a/b or c/d) are called proportions
7
Q
a and b are directly related, so their direct variation can be expressed as?
A
a = kb
8
Q
a and b are indirectly related, so their indirect variation can be expressed as?
A
a = k/b
9
Q
a and b are directly related and a and c are indirectly related, so their variation is expressed as?
A
a = kb/c
