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MSP Exam Prep Session Two February 23, 2013 Click Here to Start

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Links to review topics Review of Fractions – Videos and exercises Review of Decimals – Videos and exercises You only need to review these items if you have trouble with fractions and decimals in the rest of the material covered in this Exam Prep module. Go to Next Slide Go to Next Slide

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Video One – Rates & Ratios Go to Next Slide Go to Next Slide

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Sample Problems: 1) 2/162) 3/273)45/94)56/154 5) There are 50 text books for every 10 students. 6) The restaurant uses 256 ounces of soda for every 36 customers. 7) There are 575 butterflies in the zoo for every 135 visitors. Click to Get the Answers Click to Get the Answers

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Sample Problems: 1) 2/162) 3/273)45/94)56/154 5) There are 50 text books for every 10 students. 6) The restaurant uses 256 ounces of soda for every 36 customers. 7) There are 575 butterflies in the zoo for every 135 visitors. Go to Next Slide Go to Next Slide

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Video 2 – Writing Proportions Go to Next Slide Go to Next Slide

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8) 9 markers cost $12.78, write an equation that would help determine the cost of 4 markers. 9) 5 notebooks cost $9.05, write an equation that would help determine the cost of 13 notebooks. 10)12 pencils cost $2.75, write an equation that would help determine the cost of 71 pencils. Click to Get the Answers Click to Get the Answers

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8) 9 markers cost $12.78, write an equation that would help determine the cost of 4 markers. 9) 5 notebooks cost $9.05, write an equation that would help determine the cost of 13 notebooks. 10)12 pencils cost $2.75, write an equation that would help determine the cost of 71 pencils. Go to Next Slide Go to Next Slide

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Video 3 – Since You’re doing algebra! Go to Next Slide Go to Next Slide

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Video 4 – Just in case it comes up Go to Next Slide Go to Next Slide

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17)8x + 1 = 718) 6x-5 = 6 24) 6x-5 = 8x + 225) 2x + 9 = 10x + 6 Click to Get the Answers Click to Get the Answers

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17) 8x + 1 = 718) 6x-5 = 6 -1 -1+5 +5 8x = 66x = 11 x = 6/8x = 11/6 x = 3/4 24) 6x-5 = 8x + 225) 2x + 9 = 10x + 6 +5 +5 -2x -2x 6x = 8x +79 = 8x +6 -8x-8x -6 -6 -2x = 73 = 8x x = -2/7x = 3/8 Go to Next Slide Go to Next Slide

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Video 5 - Proportion Word Problems Go to Next Slide Go to Next Slide

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Alex and Jay each have an mp3 player. Alex had 2/7 as many songs as Jay. when Jay accidentally erased 36 songs from his mp3 player, Alex then had twice as many songs as Jay. How many songs did Jay originally have? Solving Word Problems Click to Get the Answers Click to Get the Answers

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Alex and Jay each have an mp3 player. Alex had 2/7 as many songs as Jay. when Jay accidentally erased 36 songs from his mp3 player, Alex then had twice as many songs as Jay. How many songs did Jay originally have? Solution: X = a certain number of songs 2x = how many songs Alex started with 7x = how many songs Jay started with The number of songs Alex started with is equal to twice the number of songs Jay ended with. 2x = 2(7x-36) (divide both sides by 2)Jay originally had 7x x = 7x – 36 (add 36 to both sides7 (6) = 42 x + 36 = 7x (subtract x from both sides)Jay originally had 42 songs 36 = 6x (divide both sides by 6) 6 = x Solving Word Problems Go to Next Slide Go to Next Slide

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Rates, Ratios, and Proportions

Rates, Ratios, and Proportions

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