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Proportions

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

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Proportions

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  1. Proportions

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

  3. Two ratios have to be equivalent for the equation to be proportional. Determine if the two ratios are proportional. 3 2 4 2 2 1 4 3 4 6 2 2 8 EX 1) EX 2) , 12 24 10 20 10 6 6 3 3 3 3 3 3 , , ÷ 2 = ÷ 2 = Since, = No, these ratios are nonproportional Yes, these ratios are proportional

  4. Find a ratio equivalent to each ratio. EX 3) ÷ X X 1. Simplify or multiply by one. 4 2 2 = ÷ X X 2 2 4 22 7 4 44 2 2 1 14 8 16 16 4 30 2 15 8 EX 4) = 6 squares 2 4 8 EX 5) Complete the table. circles 24 16 32 8 X = =

  5. Notes start here

  6. Proportions Date ___________

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

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

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

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