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# FRCC MAT050 Vocabulary and Proportions (Sect 1.6)

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• 1. Vocabulary and Proportions Section 1.6
• 2. Note Slide - Vocabulary &#xF06C; Variable &#x2013; A letter that is used to represent a number that is changing &#xF06C; Constant &#x2013; A number that does not change &#xF06C; Expression &#x2013; A series of operations, variables, and constants (NO EQUAL SIGN) &#xF06C; Equation - An expression that is set equal to something
• 3. Video Slide Watch the video on evaluating expressions with varibles and copy the example in your notes: http://www.youtube.com/watch?v=SjSFKBNlRmo
• 4. Homework Slide Evaluate the following expressions when x= 6 and y = 4
• 5. Note Slide - Vocabulary &#xF06C; Proportion &#x2013; When two fractions are equal, they form a proportion. &#xF06C; When two rates are equal, they are proportional
• 6. Video Slide Watch the video on Equivalent Fractions and copy the example in your notes: http://www.youtube.com/watch?v=xnVO-zMq-KA
• 7. Homework Slide 20 ? 4 3 &#xF03D; 14 ? 2 1 &#xF03D; 56 ? 8 7 &#xF03D; 15 ? 5 3 &#xF03D; Proportions &#x2013; Equivalent Fractions:
• 8. Video Slide Watch the video on Converting from a Fraction to a Percent and copy the example in your notes: http://www.youtube.com/watch?v=lH6FRHs3tlI
• 9. Homework Slide Converting from Fraction to Percent (A percent is a proportion related to 100) 1. Write the process you use to convert a percent to a fraction. 2. Convert to a percent20 13
• 10. Group Work Remember to use complete sentences! &#xF06C;Look at page 39 of section 1.6 &#xF06C;Do #8-15 as a group
• 11. Homework &#xF06C; My Math Lab &#x2013; Section 1.12 &#xF06C; Text Book Homework page 41 #1-13 &#xF06C; My Math Lab &#x2013; Section 1.6