What do you have to add to -2 1/2 to have a result of 2 1/2

The number to add is 5

Step-by-step explanation:

Let

x ----> the number to add

we have that

Convert mixed number to an improper fraction

substitute

Solve for x

Adds 5/2 both sides

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof