Question

fill in the blanks below.
(a) a hibernating animal lost 3 pounds.
write a signed number to represent this weight change.

(b) the temperature fell by 7 degrees fahrenheit today.
write a signed number to represent this temperature change.

Explanation:

Step1: Define sign for weight loss

A loss is represented by a negative number. Since the animal lost 3 pounds, the signed - number is - 3.

Step2: Define sign for temperature drop

A drop in temperature is represented by a negative number. Since the temperature fell by 7 degrees Fahrenheit, the signed - number is - 7.

Answer:

(a) - 3
(b) - 7