Warm-Up!

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# Warm-Up! - PowerPoint PPT Presentation

Warm-Up!. Number Cruncher!. Algebra I – Chapter 1. 1.4 – Translating words into symbols 1.5 – Translating sentences into Equations. Symbols:. You Try!. Four times a number Four less than five times a number Ten times the sum of a number and nine Eleven more than one third of a number.

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Presentation Transcript
Warm-Up!

Number Cruncher!

### Algebra I – Chapter 1

1.4 – Translating words into symbols

1.5 – Translating sentences into Equations

You Try!
• Four times a number
• Four less than five times a number
• Ten times the sum of a number and nine
• Eleven more than one third of a number
You Try!
• Four times a number 4N
• Four less than five times a number 5N -4
• Ten times the sum of a number and nine

10(N + 9)

• Eleven more than one third of a number

⅓N + 11

Formulas:
• Formulas are equations that state rules about relationships.
• Area of a Rectangle:
• Perimeter of a Rectangle:
• Distance Traveled:
• Cost:
Equations:
• When you add the word is, then it becomes an equation. Now it can be solved.
• Ex: Three times a number decreased

by 8 is 10

You Try!

2x

3

x

x

P = 30m

A = 24m

4

P = 10m

Reflection:
• What is a symbol? Give a couple of examples.
• What is a formula?
• When does an expression become an equation?

### Tonight’s Homework:

Page 17 (17-26)

Page 20/21 (1-21 odd)

Quiz next class