september 14, 2016 - wordpress.com · 2017. 9. 1. · 1.3 rates.notebook 4 september 14, 2017 smart...

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September 14, 2016 Due Today: HW 1.2

Due Tomorrow: VN 1.4

Lesson 1.3­ Rates

Aim: I can determine a better buy by calculating unit rates.

Warm Up: Lucy just started working at an old­fashioned diner where they still calculate the tip by hand. A table's bill came out to be $32.50. She had to calculate a 6.5% tax. Her work is below. She found the total cost with tax to be $53.63. Her customers complained that it was too much when she gave them the bill. Were they right to complain? Explain.

Extension: Calculate a tip for Lucy as if you were the customer.

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Homework Review

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Video Notes Practice

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Smart ShoppingLet's get the best deals for household supplies and food!

2 packs, 40 m each

$6.99

1 pack, 50 m

$3.99

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Smart ShoppingTask: For each product, decide which item is a better buy.

Result: You will present your findings for one product. Give the unit rates that you used to compare the two items. Then share if there is any practical reason you might not purchase the better buy.

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Wrap Up

1.3 RatesVN 1.4

How can you determine what is the best deal?

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