# Why I Must Learn Math! - PowerPoint PPT Presentation

Why I Must Learn Math!

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Why I Must Learn Math!

## Why I Must Learn Math!

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##### Presentation Transcript

1. Why I Must Learn Math! Adriana Gonzalez 3/24/09 Period 3

2. Why I Must Learn Math! Who uses math? Where do we use math? What professions (careers) use math? Real world problem involving math

3. Who Uses Math? Everybody uses math whether they realize it or not. Shopper Chefs Vacationers

4. Where Do We Use Math? Every where! Purchasing food, CDs, games, movie ticket etc ... Figuring out if you have enough money to make the purchase Cooking, sewing, building things

5. What Professions(Careers) use Math? Accountants Architects Biologists Chemists Engineers Managers Many, many more ...

6. Real World Problem There are some shoes on sale for 30% off before sales tax. Original price is \$68.99, but you also have an additional 10% off coupon before sales tax. You have \$50.00, if sales tax is 10.25% can you afford the shoes? .30*68.99 = 20.70, thus with 30% off the shoes are 68.99-20.70 = 48.29 Now, taking an additional 10% off results in 48.29*.10 = 4.83 thus 48.29-4.83 = 43.26 for the shoes with all the discounts. Applying the sales tax, 43.26*.1025 = 4.45 so the total will be 43.26 + 4.45 = 47.91. ANSWER: Yes