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(7.3) Patterns, relationships, and algebraic thinking. The student solves problems involving proportional relationships. The student is expected to: (B)

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Presentation on theme: "(7.3) Patterns, relationships, and algebraic thinking. The student solves problems involving proportional relationships. The student is expected to: (B)"— Presentation transcript:

1 (7.3) Patterns, relationships, and algebraic thinking. The student solves problems involving proportional relationships. The student is expected to: (B) estimate and find solutions to application problems involving proportional relationships such as similarity, scaling, unit costs, and related measurement units. 7.3B STUDENT ACTIVITY #1

2 Problem #1: A caterer has been hired to make trays of appetizers for a wedding reception. The price for 2 trays is $ The bride has ordered 17 trays. How much will she pay for 17 trays of appetizers? Identify the ________ being ________. Be certain to compare the corresponding ________ in the same ________. ratioscompared quantitiesorder x17 $ cost of traysnumber of trays Write a _________ using the two ________. Let x equal the cost of the _____ trays. ratios proportion 17 trays cost x = trays cost 2 17x 44.50

3 Use cross products or another appropriate method to solve the proportion. The bride will pay _______ for 17 appetizer trays x = 2 x = 2x =2x 17x =2x 22 x = ______ $


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