Question

fill in the blanks below. (a) a hibernating animal lost 4 pounds. write a signed number to represent this weight change. (b) a car corporation produced 560 more cars this month than last. write a signed number to represent this months change in production.

Explanation:

Step1: Understand weight - loss sign convention

Loss is represented by a negative number. Since the animal lost 4 pounds, the signed number is - 4.

Step2: Understand production - increase sign convention

An increase is represented by a positive number. Since the car corporation produced 560 more cars, the signed number is + 560 or simply 560.

Answer:

(a) - 4
(b) 560