1 / 13

Evaluating Expressions

Evaluating Expressions. Real World Examples Page 2 & 4 in Practice Workbook. Page 2, #22. A side table has interior storage space in the shape of a cube. What is the volume of the storage space if the interior length is 12 inches? V = Bh V = lwh V = (12)(12)(12) V= 1728. Page 2, #23.

kibo-nelson
Télécharger la présentation

Evaluating Expressions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Evaluating Expressions Real World Examples Page 2 & 4 in Practice Workbook

  2. Page 2, #22 A side table has interior storage space in the shape of a cube. What is the volume of the storage space if the interior length is 12 inches? V = Bh V = lwh V = (12)(12)(12) V= 1728

  3. Page 2, #23 There are 52 playing cards in a standard deck of playing cards. You are combining decks of cards so that you can play ba game with a large number of people. The expression 52d represents the number of cards in d decks. If you combine 4 decks of cards, ow manu cards will you have all together? 52d 52(4) = 208 cards

  4. Page 2, #24 An item costs c dollars and 6% sales tax is charged. The total cost including sales tax is given by the expression 1.06c. You are buying a skateboard that costs $75. What is the cost of the skateboard including sales tax? 1.06c 1.06 (75) = $79.50

  5. Page 4, #24 Three weeks ago, an art supply bstore started selling a paint kit for 75% of the original price. Now the kit is 15% off of the sale price. The expression .75x – 0.15(0.75x) represents the current price of the paint kit where x is the kit’s original price (in dollars). Find the current price if the kit originally cost $48

  6. Page 4, #24 (continued) .75x – 0.15(0.75x) .75 (48) – 0.15(0.75)(48) 36 – 5.4 30.6 Since this is money, we say $30.60

  7. Page 4, #25 You are decorating the perimeter of the ceiling of your living room with crown molding. The expression 2x + 2y represents the total amount of molding you need where x is the width of the room (in feet) and y is the length of the room (in feet). Find the total amount of wood you need if the room is 11 feet wide and 10.5 feet long.

  8. Page 4, #25 (continued) 2x + 2y 2(11) + 2 (10.5) 22 + 21 43 inches

  9. Translating Now, let’s look at translating verbal phrases into expressions

  10. The difference of 9 and a number n9 - n

  11. 25 more than twice a number m 2m + 25

  12. Words for Operators We discovered that many different words are used to indicate operations.

  13. Brainstorm as a class !! Record all of your responses.

More Related