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Proportions Objective: Understand what proportions are, setting the up and solving Vocab Ratio Comparison of two numbers, fraction Proportion Equation setting 2 ratios equal to each other Terminating decimal When you divide a ratio and get a decimal that stops Repeating Decimal When you divide a ratio and get a decimal that repeats, 1/3 Variable Letter that stands for a number, can be any letter Solving A Proportion Main idea Cross Multiply p 36 12 48 Examples Example Word Problems Read the problem carefully What is given? What do they want you to find? Example What do you need to find? What is given? Set up the proportion? Each ratio needs to be set up the same Solve and label your answer Exit Ticket Objective: Understand what proportions are, setting the up and solving On a scale of 1 to 4 do you feel we met our objective? If we didn’t what do we need to improve. Homework Pg 99 2,3,4,6,8
