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Mrs.
Ruffin
Unit 2
Ratios and Proportions
Ratios
Ratios- is a comparison of two or more quantities. Written in three forms.
What is the ratio of stars to squares?
2 : 3 , 2 to 3 , 2
3
,
Rates
Rates-
Equivalent Ratios (Proportions)
Equivalent Ratios are simply equivalent Fractions
Percent of a number
30% of 65
.30 x 65 = 19.5
What Percent is it?
Part = %
whole 100
Percent Taxes and Tips
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