Thursday, December 02, 2004

Word Problems

  1. Becky bought two pairs of pants, four pairs of socks, and a pair of shoes on Friday. She bought five pairs of underwear and a shirt on Saturday. On Thursday she bought a pair of pants and a sweater. How much longer until her family starts comparing her to Aunt Julia with the Shopping Problem?

  2. All told, it took nearly six weeks to get around to having the car looked at about the brake noise. The dealership replaced the pads and rotors and did an oil change for $372 (including sales tax). The car was still making the noise (to a much lesser extent) on the way home from the dealership. How much more time and money will go into fixing this problem? How does your answer change if the car is a 1994 Honda Civic (name: Abigail) with 101,400 miles, minor body damage, and a Dennis Kucinich bumper sticker? How does your answer change if the car is a 2002 Saturn SL2 (name: Calliope) with 47,500 miles on it? How does your answer to that last part change if you know that Calliope has been driven fewer than 7000 miles since July 2003?

  3. 60 students are taking a math class where all the tests and assignments together total 500 points. Letter grades and +/- change every 25 points. The students turned in a 10 point assignment this week. What fraction of the students are likely to be so close to or so far from the letter grade boundary that their papers won't really need to be graded?