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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
Warm-Up!

Number Cruncher!

algebra i chapter 1

Algebra I – Chapter 1

1.4 – Translating words into symbols

1.5 – Translating sentences into Equations

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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