Name: __________________________________ Class: FAMU/Howard Date: 11/18/15 Solving Word Problems Involving Rational Numbers.Directions: Solve the word problems. Show your work.

1. Kathy takes her cat to a veterinarian every year for a check-up. Last year, the difference in the cat’s weight from the year before was -1.56 pounds. This year, the difference in its weight from last year is 0.73 pounds. What is the difference in the cat’s weight from 2 years ago?

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Answer__________________________ pounds

2. The value of a car decreased $4,822 in 5 years. What was the average change in the value of the car each year?

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Answer__________________________

3. Raul has 4 identical baseball cards of this favorite player. According to his monthly price guide, the change in value of one of the cards from the previous month was -$0.12. What was the combined change in value of the 4 cards?

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Answer__________________________

4. The outside temperature was 4 degrees Celsius. For the next 6 hours the temperature changed at a mean rate of -0.8 degrees Celsius per hour, Then the temperature changed by +0.3 degrees Celsius per hour for the next 3 hours. What was the final temperature? Show your work

Answer_________________________