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FRCC MAT050 Vocabulary and Proportions (Sect 1.6)

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FRCC MAT050 Vocabulary and Proportions (Sect 1.6)

  1. 1. Vocabulary and Proportions Section 1.6
  2. 2. Note Slide - Vocabulary  Variable – A letter that is used to represent a number that is changing  Constant – A number that does not change  Expression – A series of operations, variables, and constants (NO EQUAL SIGN)  Equation - An expression that is set equal to something
  3. 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. 4. Homework Slide Evaluate the following expressions when x= 6 and y = 4
  5. 5. Note Slide - Vocabulary  Proportion – When two fractions are equal, they form a proportion.  When two rates are equal, they are proportional
  6. 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. 7. Homework Slide 20 ? 4 3  14 ? 2 1  56 ? 8 7  15 ? 5 3  Proportions – Equivalent Fractions:
  8. 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. 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. 10. Group Work Remember to use complete sentences! Look at page 39 of section 1.6 Do #8-15 as a group
  11. 11. Homework  My Math Lab – Section 1.12  Text Book Homework page 41 #1-13  My Math Lab – Section 1.6

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