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PETA # 1 IN MATH (Word Problems, Comics and Presentation) Presented To: Mr. Juliano Parena Jr. Presented By: Micco Allen Baybado; Alyssa Balisi Roi Calimpon; Carm Altares

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PROBLEM # 1 AA steel beam, 715 cm long, is cut into two pieces so that one piece is 80 cm longer than the other. Find the length of each piece.

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SOLUTION # 1

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ANSWER

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PROBLEM # 2 A solution that is 10% anti-freeze is mixed w/ a 20% anti-freeze to produce 50L of solution that is 15.6% anti-freeze. How many litres of the 10% solution are used? The total amount of solutions is 50 L

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SOLUTION #2 The anti-freeze in the mixture comes from the anti-freeze in each solution.

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SOLUTION #2.1 Strength of solution Litres of solution = Litres of Anti-Freeze 10% Solution0.10s= 0.10s 20% Solution0.20(50-s)= 10 – 0.20s 15.6% Mixture = 7.8

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SOLUTION # 2.2 0.10 s + (10 – 0.20s) = 7.8 -0.10s + 10 = 7.8 -0.10s = s = 22 L 50-s = 28 L Let’s Check it.

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ANSWER

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PROBLEM # 3 Emanuel Josh has P300 in his wallet. He wants to ride on a roller coaster and to enter into the different boots at the Star City. If the roller coaster cost P60, what is the most he can spend on the different boots?

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SOLUTION #3 Solution: 60 + x < 300 60 – 60 + x < 300 – 60 x < 240 Answer: P240

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ANSWER To find the greatest amount of money Emanuel Josh can spend on the different boots Let x= the amount of money that he can spend on the different boots Cost of Riding a Roller Coaster PlusCost of different booths Less Than or Equal to Total Amount 60+X<300

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