Proportions. An equation stating that two ratios are equivalent is called a proportion. 200 Miles 4 Hours 50 Miles 1 Hour = An equation stating that two.

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Presentation transcript:

Proportions

An equation stating that two ratios are equivalent is called a proportion. 200 Miles 4 Hours 50 Miles 1 Hour = An equation stating that two ratios are not equivalent is called nonproportion. 200 Miles 4 Hours 25 Miles 1 Hour =

Two ratios have to be equivalent for the equation to be proportional. EX 1)2 3 Determine if the two ratios are proportional. 4 6, ÷ ÷ 2 2 = Since, = Yes, these ratios are proportional EX 2) , , = No, these ratios are nonproportional

EX 3) Find a ratio equivalent to each ratio Simplify or multiply by one. X X = EX 4) X X = EX 5)Complete the table. squares circles ÷ ÷ = 2 2 X 2 8 =

Notes start here

Proportions Date ___________

An equation stating that two ratios are equivalent is called a __________. An equation stating that two ratios are not equivalent is called __________.

Two ratios have to be __________ for the equation to be proportional. EX 1) Determine if the two ratios are proportional., EX 2),

EX 3) Find a ratio equivalent to each ratio. EX 4) EX 5)Complete the table. squares circles