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Proportions

Proportions. 6.2. Proportion. An equality of two ratios. Examples. Tell whether each pair of ratio forms a proportion. To Solve a Proportion. In a proportion the cross products are equal Cross multiply Set products equal Solve for your variable. Example. Example:.

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Proportions

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  1. Proportions 6.2

  2. Proportion • An equality of two ratios

  3. Examples

  4. Tell whether each pair of ratio forms a proportion

  5. To Solve a Proportion • In a proportion the cross products are equal • Cross multiply • Set products equal • Solve for your variable

  6. Example

  7. Example:

  8. 20lb for $27.50; 12 lbs for x dollars

  9. 3 tea bags are needed to make a gallon of iced tea. How many tea bags are needed to make four gallons?

  10. In how many seconds will a newborn’s heart beat 35 times?

  11. Homework you will have time in class tomorrow to work on it 

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