Warm up
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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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Warm-Up!

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Warm up

Warm-Up!

Number Cruncher!


Algebra i chapter 1

Algebra I – Chapter 1

1.4 – Translating words into symbols

1.5 – Translating sentences into Equations


Symbols

Symbols:


You try

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 try1

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:

  • Formulas are equations that state rules about relationships.

  • Area of a Rectangle:

  • Perimeter of a Rectangle:

  • Distance Traveled:

  • Cost:


Equations

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 try2

You Try!

2x

3

x

x

P = 30m

A = 24m

4

P = 10m


Reflection

Reflection:

  • What is a symbol? Give a couple of examples.

  • What is a formula?

  • When does an expression become an equation?


Tonight s homework

Tonight’s Homework:

Page 17 (17-26)

Page 20/21 (1-21 odd)

Quiz next class


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