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Proportions

Proportions. Math 8: Unit 3 Mrs. Tyrpak. Proportions Review. Remember, we started talking about proportions when we defined similarity. We know two ratios are proportional if the cross products are equal. Tell whether the following ratios are proportional. Applying Ratios and Proportions.

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Proportions

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  1. Proportions Math 8: Unit 3 Mrs. Tyrpak

  2. Proportions Review Remember, we started talking about proportions when we defined similarity. We know two ratios are proportional if the cross products are equal.

  3. Tell whether the following ratios are proportional.

  4. Applying Ratios and Proportions A shade of paint is made by mixing 5 parts paint with 7 parts blue paint. If you mix 12 quarts of blue paint with 8 quarts of red paint, will you get the correct shade?

  5. Solve the following proportion

  6. Solving Proportions

  7. Application • Two masses can be balanced on a fulcrum when . The green box and the blue box are balanced. What is the mass of the blue box?

  8. Keep up the GREAT work! Don’t forget to complete your practice and application worksheets. We are beginning to work more algebraically so check your work when possible 

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