1.) x/4 = 27/36 2.) 5/x = 27/30 3.) (x+6)/(x-2) = 2/x 4.) Next Slide

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Presentation transcript:

1.) x/4 = 27/36 2.) 5/x = 27/30 3.) (x+6)/(x-2) = 2/x 4.) Next Slide Bellwork 4/6 Solve 1.) x/4 = 27/36 2.) 5/x = 27/30 3.) (x+6)/(x-2) = 2/x 4.) Next Slide

4.) Find the Missing Length 4.) 5/30 = x/120 120 x 30 5

Bellwork 4/6 Solve 1.) x/4 = 27/36 36x = 108 x = 3

Bellwork 4/6 Solve 2.) 5/x = 27/30 27x = 150 x = 150/27 = 50/9

3.) (x+6)/(x-2) = 2/x x2 + 6x = 2x - 4 x2 + 4x + 4 = 0 Bellwork 4/6 Solve 3.) (x+6)/(x-2) = 2/x x2 + 6x = 2x - 4 x2 + 4x + 4 = 0 (x + 2)(x + 2) = 0 x = -2

Find the Missing Length 5/30 = x/120 30x = 600 x = 20 120 x 30 5

To be able to solve PerCent Problems. Today’s Objective To be able to solve PerCent Problems.

____ is ____ % of ____ ____ = ____ • .01 • ____ Find the is, %, and of General Form ____ is ____ % of ____ ____ = ____ • .01 • ____ I II III Find the is, %, and of

What is 30% of 70? ____ is ____ % of ____ ____ = ____ • .01 • ____ 3 Types of Problems Type 1: What is 30% of 70? ____ is ____ % of ____ ____ = ____ • .01 • ____ 30 70 x

135 is what % of 27 ? ____ is ____ % of ____ ____ = ____ • .01 • ____ 3 Types of Problems Type 2: 135 is what % of 27 ? ____ is ____ % of ____ ____ = ____ • .01 • ____ 27 135 x

14 is 25 % of what # ? ____ is ____ % of ____ ____ = ____ • .01 • ____ 3 Types of Problems Type 3: 14 is 25 % of what # ? ____ is ____ % of ____ ____ = ____ • .01 • ____ 25 14 x

3 Types of % Problems Notice that the number of the blank that has determines the type of problem…. In other words, when the first blank is , it is a Type I Problem. x x

x = .3 • 70 x = 21 What is 30% of 70? ____ = ____ • .01 • ____ Type 1

135 is what % of 27 ? ____ = ____ • .01 • ____ Type 2 135 = .27x

14 is 25 % of what # ? ____ = ____ • .01 • ____ Type 3 14 = .25x

Identify Which Type 1.) What # is 23 % of 70? 2.) 13 is what % of 50 ? 4.) 24 is 50% of what # ? 3 5.) 5 is what % of 20 ? 2

Write this on your paper ____ is ____ % of ____ ____ = ____ • .01 • ____ Find the is, % and of

Your Turn 1.) What # is 5% of 200 ? 2.) 24 is 50% of what # ? 3.) 5 is what % of 20 ?

Your Turn 1.) What # is 5% of 200 ? x = 5 • .01 • 200 x = .05 • 200 x = 10

Your Turn 2.) 24 is 50% of what # ? 24 = 50 • .01 • x 24 = .5x 24/.5 = .5x/.5 48 = x

Your Turn 3.) 5 is what % of 20 ? 5 = x • .01 • 20 5 = .2x 5/.2 = .2x/.2 25 = x

Write this on your paper ____ is ____ % of ____ ____ = ____ • .01 • ____ Find the is, % and of

Classwork Do worksheet 11.2 Homework page 571 (6-26 even)