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Understanding Conditional Statements in Online Shopping

Learn how to create variable expressions and evaluate costs in online shopping using conditional statements. Practice with an example of ordering CDs online. Master the concept of conditions in mathematical expressions.

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Understanding Conditional Statements in Online Shopping

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Presentation Transcript

  1. First - Let’s define the word condition. Conditional Statements

  2. con·di·tion /kənˈdɪʃən/ Show Spelled [kuhn-dish-uhn] Show IPA noun 1. aparticular mode of being of a person or thing; existing state;situation with respect to circumstances. www.dictionary.com

  3. An online music store charges $14 for each CD. Shipping costs $6 per order. Online shopping:

  4. A.) write a variable expression for the cost of ordering CDs. • In this problem you don’t know the number of CDs. Variable expression

  5. Your conditional statement will always begin with identifying the variable beginning with the word “Let” Step 1 – Letn represent the number of CDs. Step 1 of a conditional statement

  6. Step 2 of your conditional statement will begin with the word “Then”. • This step will take the remaining information using the words in the problem to help you write your variable expression or equation. • Then if an online music store charges $14 for each CD at $6 shipping per order… Step 2

  7. Step 3 – Now write your variable expression or equation. • 14n + 6 • Questions: • What does 14 represent? • What does n represent? • What does 6 represent? Step 3

  8. Step 4 – • If I order 8 CDs • 14(8) + 6 = 118 Step 4 - Evaluate

  9. Step 5 - Restate your answer in words – • If I order 8 CD’s at a cost of $14 each with $6 shipping, I will pay $118. Step 5 - Restate

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