Question

=Writing a signed number for a real-world situationFill in the blanks below.5(a) Latoya's test score average Increased by 8 points this semester.Write a signed number to represent this change in average.(b) Isabel lost 70 dollars from her pocket.Write a signed number to represent this change.

Answer 1

a) +8

b) -70

Step-by-step explanation:

A signed number is a number that includes a '+' or '-' sign in front of the number. We use '+' to express an increase or an addition, and '-' to express a decrease, a subtraction, or a loss in quantity.

Solving part a)

Latoya increased her score by 8 points, since this is an increase, the signed number will be:

`+8`

Solving part b)

Isabel lost 70 dollars from her pocket, since this is a decrease in the amount of money she has, we represent it with a '-' sign in front of the number. The signed number will be:

`-70`

Answer:

a) +8

b) -70