Today in class students took a really fast look at the power point about finding the percent of change from the google classroom. You may find it there to complete your notes. We moved on to learn about using mental math (mostly) to find the percent markup and markdown. There is another way to do these in a video lesson on the google classroom.
Answers to HW: 1. whatever you think it will cost... 2. $20 3. $15 4. $12 5. how did you do with your guess... 6. ESTIMATE: an item from the long table is first 50% off, so it drops in price from $50 to $25. Then another 25% is 1/4 of $25, so about $6 more discount - down to $19. Then another 20% off is 1/5 of $19, so about $4 more off - down to $15. 1% of $15 is $0.15, and 6 of those is $0.90 so that's tax added. My total is about $16. 7. 1/2 of $80 is $40, then 1/4 of $40 is $10 so the cost is down to $30. !/5 of $30 is $6, so now the cost is down to $24. $24(7.5%) = $1.80, plus $24 = $25.80 total cost for the $80 item. 8. You have $100 to spend. You cannot afford the $500 item even with all of the discounts. Do the math of the discounts to prove it. In addition, and $80 item you just bought from that table cost $25.80 and when you divide 500 by 80 and get 6.25...well $25.80 x 6 is more than $100.
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October 2018
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