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## Solving Word Problems

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**Solving Word Problems**Putting Your Translation Skills To Work**Let’s Make A Plan**• Verbal Model • Ask yourself what you need to know how to solve the problem. • Labels • This means define the variable • Algebraic Model • Write a math equation or inequality using your labels and verbal model • Solve • Check to make sure your solution makes sense**Let’s Try Together**• You and some friends are at a Chinese restaurant. You order several $2.00 plates of wontons, egg rolls, and dumplings. Your bill is $25.20, which includes tax of $1.20. Use modeling to find out how many plates you ordered. Start with a verbal model. What do you know about buying food in the restaurant and how you find your bill.**Verbal Model**• Cost of food + tax = amount paid • How do you determine cost of food? • Each plate costs $2.00 so • # of plates $2.00 = cost of food • Final verbal model • $2.00 # of plates + tax = amount paid**Labels**• X = number of plates you purchased • 2 = amount paid per plate • 1.20 = tax paid on food • 25.20 = amount paid for food and tax**Algebraic Model**• Substitute the labels for the words in the verbal model • $2.00 # of plates + tax = amount paid • 2x + 1.20 = 25.20**Solve it and Check your answer**• 2x + 1.20 = 25.20 • 1.20 - 1.20 2x = 24.00 2 2 x = 12.00 There were 12 plates of food ordered 2(12) + 1.20 = 25.20 ? 24 + 1.20 = 25.20 √**Pratice Workbook Page 17**Verbal Model • $8 per hat has to equal $2480 Labels • 8 = cost of one hat x = number of hats • 2480 = amount they want to make Algebraic Model 8x = 2480 Solution x = 310 hats Check 8 310 = 2480 √**Where are we now?**• Vocab List is due on Friday during the test • Test over all of chapter 1 will be Friday • Tutoring available Tues – Fri at 8:15 AM • Also Wednesday after school from 4:00 – 5:30 PM • Don’t forget homework Pages 39 – 40 • Walk or SUBWAY, Kudzu and Stereo Problems (#5-20)