130-unknown-06fa02-v2

130-unknown-06fa02-v2 - MATH 130 ' Name: Exam 2 Problem 1....

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Unformatted text preview: MATH 130 ' Name: Exam 2 Problem 1. Make the conversions: (8.) 443fiue : ten 443m: : five Problem 2. (a) Construct the addition table in base five. (b) Construct the multiplication table in base five. Problem 3. Calculate in base-five: (a) 244 343‘ + 443 (b) 2324 - 432 Problem 4. Calculate in base five: (a) 243 x 23 (b) 42|2324 Problem 5. Mary can paint a house in 12 days. Sarah can paint it in 8 days. Sarah worked alone for two days before Mary could join her. How much time did the-two use together to finish the job? ' Problem 6. a) Illustrate with a diagram the multiplication g x b) Illustrate with a diagram the subtraction Mo: CHIN Problem 7. The value of a fraction is g. If we take one from the numerator and three from the denominator, the value of the new fraction is 3. Find the original fraction. ' Problem 8. Joe went on a six hour trip. He averaged 70 mph the first two hours and 60 mph the'rest of the time. What was his average speed for the trip? Problem 9. How much 10% solution must be addedlto eight gallons of 60% solution to get a 40% solution? ‘ > Problem 10. In a class there are 40% girls and one-quarter of the girls are seniors. There are twice as many senior boys as senior girls. ’ (a) Make a Chart with actual numbers incorporating all the information. (b) What is the ratio of senior boys to all boys? (c) What percent of the class are seniors? ...
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This note was uploaded on 08/08/2008 for the course MATH 130 taught by Professor Terwilliger during the Spring '07 term at Wisconsin.

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130-unknown-06fa02-v2 - MATH 130 ' Name: Exam 2 Problem 1....

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