Sec 3.3-FocusAns

# Sec 3.3-FocusAns - Section 3.3 1 Focus Exercise Answers Let...

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Section 3.3 Focus Exercise Answers 1. a) Let x = the number of points on his second test. c) x + 82 2 = 87 e) x = 92 f) Sam got 92 points on his second test 2. a) Let x = the number of points he will need on his third test. c) 87 + 85 + x 3 = 90 e) x = 98 f) Anthony will need to score 98 points on his third test to reach his goal. 3. a) Let x = his average rate of speed for the journey. c) 42 = 3 2 x e) x = 28 f) Kahlill’s average rate of speed was 28 mph. 4. a) Let x = the width of the garden. c) 2(18) + 2(x) = 50 e) x = 7 f) The width of the garden needs to be 7 feet. 5. a) Let x = the amount he received from his McDonald’s stock; x + 10,000 = the amount he received from his Pepsi stock. c) x + (x + 10,000) = 92,000 e) x = 41,000 f) Maurice received \$41,000 from his McDonald’s stock and \$51,000 from his Pepsi stock. 6. a) Let x = the amount Phyllis will receive; 2 3 x = the amount Larry will receive. c)

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## This note was uploaded on 01/13/2012 for the course MATH 52 taught by Professor Janetfrewing during the Fall '10 term at Riverside Community College.

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Sec 3.3-FocusAns - Section 3.3 1 Focus Exercise Answers Let...

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