Solving Problems using Linear Systems. Type #1: Arithmetic The sum of two numbers is 255. When the smaller is subtracted from the larger, the result is.

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Presentation transcript:

Solving Problems using Linear Systems

Type #1: Arithmetic The sum of two numbers is 255. When the smaller is subtracted from the larger, the result is 39. Find the numbers. Let the two numbers be x and y (smaller) x + y = 255 x - y = 39

Type #2: Money Tran has $ to invest. She invests some money in bond A at 4%, and some money in stock B at 5%. If the total interest was $440.00, how much did she invest in each? Let the two investments be A and B A + B = A B = 440

Type #3: Geometry (See front)

Homework Pg 43 1, 5,8,9,12,14,16